No.
1.
2. Numerous CTD.
3. Engine slowdown for no reason.
4. Checkpoint saves not recognizng completed objectives.
5. Guards not disappearing during Parkers mission.
6. Enemies getting stuck in walls.
7. Enemies disappearing after loading a checkpoint.
8. Alt-Tab causing crash.
I experienced all of them in one playthrough, so yes this game is buggy. Buggier than previously mentioned games.
Again no. I myself prefer AP to Oblivion, Fable 2, FO3. But that does not render me blind to AP problems, which it definitely has.
Obviously you haven't played ME, if you had you would know the it's a 3rd person squad based game, compared to AP being a third person stealth based game. While both being action RPGs, they both tring to achive different things. It's like comparing Gears to MGS.
As for the Conspiracy against AP.....
AP from a purely C&C and interesting characters veiwpoint, is great. However this is a game and the are some serious flaw in it. The RPG mechanics are interesting. Stealth, Martial art, Sabotage and Tech are the highlights, however using pistol makes makes the game too easy, there is no reason to use SMG and Shotguns due to their ineffectiveness.
Presentation is poor, music is unremakable, AI is terrible(to be fair all RPG AI is, but in a stealth game this is made more apparent) graphics are average - poor(obviously the PS2 comparison is idiotic, but still not good), animation is poor. UI is inadequate, the lack of hotkeys on the PC port is saddening and as mentioned the game is buggy.
Having said all that it might seem that I don't like the game, the bizarre thing is I really like it. The flaws definately take away from the game, but I can't deny I'm really enjoying it. In the end it seems like it's going to be another VTM:B as others have said.
In the end it's up to you, by your posts your not one to listen to reviewers(good thing), but look at the posters on this forum even more critically then you do reviewers. Fanboys are rarely objective. From your posts, it seems to me thake you enjoy a good game more then a good story, if that is the case, waiting for AP to drop in price might be in your best interests. But in all honesty I usually hesitate to recommend/discourage games due to peoples taste being so varied.