For the majority of the achievements which I would say constitutes 95% or more, I would say yes. These are either the storyline plot achievements that you will get as your game character progresses through the story or the reasonable achievements that you can get within a reasonable amount of time either by yourself or with friends. I do enjoy collecting the icons each achievement has when they are unlocked.
For the achievements that fall outside this 95% and are in that 5%, they are either in the broken category where you fulfill all the requirements needed to unlock the achievement, yet the game code fails to recognise that and doesn't unlock you that achievement, and the game is often no longer supported to change things and remove the broken achievement, or the achievement is basically considered lame or unreasonable by requiring your character to find a very large number of different players (not bots) to help you with those, requiring very large amount of practice or luck where very few can hope to get it even with a lot of effort or time spent in the game (Especially those that require your character to play the game in one sitting without dying or worse, without even saving game), or require you to spend hours by the hundreds to thousands in the game. For these achievements, I would say not enough thought or effort has been put into designing the game and their achievements and I may think twice or more before buying the game or going for the achievements without cheating.
In both cases, I do feel good each time I managed to unlock it, more so when other players or myself ask for help with the game and their achievements and have made invaluable online game friends, multiplayer and co-op partners in the process.
Post edited September 03, 2013 by woosk