Getting near the end (I think) - at the Convention Centre now.
I've mostly really loved the game. For about half of it, I was really pleased with how it maintained the feel of the first Deus Ex and the world it took place in.
I do find myself increasingly reflecting on some niggles, though, and some things I consider to be poor design implementation (perhaps populist - certainly not brave). These mostly concern the augmentation issue.
First is the point some have raised: augmentation is ubiquitous in this world. This doesn't fit with the original DE universe, and it also somehow cheapens augmentation itself. Why are only the bosses super-augments? Why do the rank-and-file have such insignificant augments by comparison. Also, with everyone augmented, it's no longer particularly special for AJ to be.
Second, and more fundamental for me, is the blandness of the upgrade system. I already have enough Praxis to upgrade everything I feasibly need, and this definitely cheapens the character development decisions I thought I was making. I hate it when you just end up with enough XP to level up everything.
The original game did a great job by forcing you to choose - speed or silent running, power conservation or shielding, etc. This meant you could develop genuinely different characters on each play-through to match your style. Now, there's no point since you just get everything anyway. How meh!
Also, I quite like sneaking and hacking, but I am starting to think there's just too much to hack! I feel like I've been playing a hacking sim with a FPS mini-game at times! And I'm a completist, so I have to hack everything!
Anyway, still think it's one of the better games I've played for a long while, and the game-world is pretty splendid, but it's still let-down by comparison to the heights scaled by its first predecessor imho...