I, too, like the graphics a lot, and it just goes to show how a retro-styled game can still look pretty and polished without requiring your computer to be an "ULTRA ÜBER ELITE SUPER GAMING EXPENSIVE" rig (which, obviously, my 2008 mid-to-low-range Acer TravelMate 5520 laptop with integrated 256 MB "up to 896 MB" ATI Radeon Xpress 1250 HyperMemory is far from being).
My only complaint would be the drastic art direction change in the latest installment... I very much preferred the one used in all three games before it (I'm talking mostly about character portraits and photos, not sprite design, they're still great in that department).
I also had a whole deal of fun playing Unbound, which seems to be the "black sheep" of the series, according to some fans. I actually liked it more than the first one, but I reckon I wouldn't have enjoyed it as much had I not played Legacy before it. I felt it had superb art, plus, it's nice, as a smoker, for once, to see a game in which smokers are not utterly crucified for that practice (just take a look at Wadjet Eye's Resonance, for instance), following recent "first world" policies throughout, that deem us as complete scum and whatnot. Yes, I more than proudly unlocked the Chain Smoker achievement as soon as I could, having Lauren smoke more than 100 cigarettes during my first play-through.
The music is... well, as far as I'm concerned, it ranges from acceptable to plain bad. Again, the only title I find has great tunes is, indeed, Unbound. But, hey, you can lower or turn the music off altogether, so that's not a major issue to me.
This is a topic concerning our love for the graphics and the bottom line is I share said love, though I'm not at all fond of Deception's character portraits and photos.