I played through whole trilogy recently for the very first time and beforehand read so many bad things about EotB 3 like it's worst crap ever and not worth touching with a +5 Polearm. But honestly I can't see much difference in quality between all 3 games. In fact I'd say I enjoyed 3 slightly more than 2 because fewer frustrating moments like moving holes rooms and frost giants prison in 2.
The only really, really bad moment in 3 was one particular area of Warrior's Tomb with ridiculous respawn when skeletons and beasts were literally materializing around me. I said myself then that if this is normal I give up this game but fortunately it was the only part with such bullshit. After that it was pretty good with decent dungeons, some nice loot unlike in 2, high level mage spells and small improvements like attack from back row (strangely enough my game didn't have advertised "attack all" button?! Maybe it has to be enabled in options but I couldn't find).
All right, portraits are ugly and few puzzles are obscure but that's hardly a reason to bash whole game.

Yeah, I'm definitely not a fan of this game because of these reasons (and possibly more that I forgot about):

- The difficulty is enormous if you don't import a party from the previous games (preferably with +5 weapons)
- The maps feel empty and unimaginative, there's hardly any decoration, and a lot of EOB2's walls were recycled; that particular gray temple wall is used over and over and over again
(Heck, they even recycled Insal and pasted his image around like he's supposed to be Lathander now.)
- Many of the enemies look absolutely ridiculous
- The water level is a serious pain in the rear (but when aren't water levels a pain in the rear)
- Level draining monsters (and can't get those levels back, unless I forgot something; the first Ravenloft game suffers from this as well, but at least it has a lot of other things going for it)
- That stupid trap that drops aaaaalll your items on the ground, and I mean aaaall your items, childish move
- The sounds are incredibly bad, especially if you didn't manually patch the game

Even so, I played through it 3 times; maybe I'm a little masochistic or something. I like the dialog screens at least.

As for the All Attack button: This is a great feature that I wish the previous two games had (although it feels a bit cheesy, since you can easily do massive damage with a single click). You can enable this by left-clicking a character's name. Their name will turn yellow and the all attack button will appear.

Have you heard the minotaurs? In EOB 1 and 2 space launched the selected spell. That was also quite handy for quickly throwing fireballs and ice storms at enemies. In EOB 3 it activates the all attack, which is nice too, but now you have to click, if you want to cast a spell.

Can't tell much about difficulty as I played with imported party and fights weren't too hard.
Open areas are poorly implemented and without automapper I can imagine they're pain to draw. But second level of Warrior's Tomb, Temple of Lathander and especially Mage's Guild are pretty good. The underwater level wasn't nearly as bad as I expected because breathing spell lasts very long. Unless you play without mage.
Dunno about monsters, guess I didn't care much about their design. One thing that surprised me though is that trolls die regular way without need for fire or acid.
That particular trap was cheap, agree.

I just finished the game and it's not that bad but the last area, Temple of Lathander, is super weak. And I have no idea what was the point of implementing 9th level mage spells if my elf mage was only level 16, and on level 18 he could memorize/cast only 1 spell and it's his final possible level (20th for human mage).

Anyway I did not use magic or cleric spells very much in all 3 games, but almost never in EoB 3, the last boss fight is a joke. Thief is needed only once and only if you misuse one particular potion and that area is optional anyway, he was not able to pick any locks AT ALL!!! There was one more door in that optional area with absolutely nothing in it. And there was 1 lever in quest important area where a thief might help but only if you blind and never happen to find the gauntlets or misuse 5 potions.

There are only 7 areas, 1 is optional, 6 areas have the same wall textures (Burieal Glen and Forest Trail, Warrior's Tomb and Temple of Lathander, Guildhall Quarter Ruins and Temple Quarter Ruins), only Mage's Guild can be called *unique*. That trap which takes away every item from inventory actually takes only the majority of them with metal in it and also spawns 4 shadows, there is another encounter where almost all items, metallic included, are *stolen* from the party and you have to fight with magic and bare hands to get them back, that was so stupid. Underwater area is not that bad, but there are 2 optional areas where you'll find no items at all, one area is empty with one dispel magic spot just because it's fun I guess, another area will have a few enemies, there was absolutely no point in placing those locked trapdoors just for that! The main problem is with underwater main area with huge square space of always dispel magic, insane pain in the @$$!

The story which was criticized by many is not that bad actually, and the new music is good, the problem is there is no level music and encounters music will play for only 5-10 seconds. Some cutscenes are too fast to read the text the normal way (reading at casual speed is not possible in such moments, only the fast read) and I hate when cutscenes change text lines that rapidly.

Level drain creatures is a bad design, yes, but they never level drained my party untill I saved and stopped there to check if they actually can do that (and they did). Monsters which eat your metal weapons is super stupid but you can kill it with 2-4 magic missiles or wooden weapons, and +5 enchanted weapons for some reason are immune and I had only 2 such weapons and 1 was taken way before in EoB 1 game, amazing design!
There is one puzzle which requires you to have a food ration, however no food rations can be found in that area, so I had to get back and find it. I think there are at least 3-4 ways to make your game unfinishable (e.g. consume all the real food there).

Never again will I play this game!

And there'll never be a need; you can be proud of your accomplishment.
Now all that's left is to move all the files of this game to a floppy disk and burn the disk in a fire.

I made a small mistake in the post above, I had 2 melee +5 weapons (a halberd and a longsword) and both of them were carried from EoB 1 game, EoB 2 did not offer such good weapons at all however that game offered an opportunity to lost longsword +5 forever because it's fun. In EoB 3 I managed to find 2 more +5 weapons (one is quest important) but only after the level with those weapons hungry monsters. Yes, I think I can be proud a little since I heard so much good about the EoB trilogy games and was so happy with Lands of Lore back in 1993. Yet Lands of Lore 1 is better in every way.
As for the floppy disk it would be hard to accomplish, I need to get my very old PC to work and obtain those floppies just for that, maybe another time. Also I'm not that comfortable with putting plastic in open fire, it's like putting old leaves to burn but 10 times worse. Maybe a factory disk format and a brain surgery just to forget the whole thing, and leave a note in diary "never play EoB 3 game".

You take jokes too seriously, sir. ;)