Sorry I'm late for the party!
(tl;dr version at the end)
I must confess that I have sinned. Reviews clouded my mind and I was putting Alpha Protocol aside for a long time. Finally bought it back in November in those damned weekend deals on Steam (my list of bought-but-haven't-played-yet games is getting stronger and stronger) and even then I was putting it aside. But I fixed it. Had vacation on Friday so decided to finally give AP a shot. Fast forward 3 days to Sunday, AP finished. I was glued to my TV the whole time. It was marvelous. I of course immediately started a new game (there's very, VERY few games that I start again right after finishing them).
I love you Obsidian. I can understand the criticisms of AP, the AI can be dumb as a brick from time to time, combat isn't the best on the market, invisibility is maybe a bit overpowered, though I must say it didn't really bother me, I tried not abusing it. As for the invisibility, it seemed a bit out-of-place which bothered me more than its power. That's why I think AP should have been a cyberpunk. Like the best game ever to grace my PC. Deus Ex.
But honestly, the AI didn't really bother me (Deus Ex didn't excel at AI either, didn't affect its greatness) and I personally enjoyed the combat.
But the thing that did it for me was, like in KOTOR2, the dialogues, characters and the story, even though I'm not a big fan of spy stories like this one, AP still managed to make me enjoy it greatly, which says a lot.
The one thing that maybe could be counted as a tiny little bit of complaint were boss fights. Not that boss fights were bad, just that I'm not a big fan of boss fights in general in games like this and AP could've been even better if they ditched them. But that's not a big deal.
It's kinda funny when it comes to Obsidian (not talking about Black 'Awesome' Isle era) and me. I loved KOTOR2, which was bashed and criticized same as Alpha Protocol and I'm one of the very few people who think that KOTOR2 was as good as KOTOR1, although for different reasons (the first KOTOR lost some of it's magic after the first playthrough as the twist was already revealed, while KOTOR2 did not). And I still didn't touch their highly praised NWN2 and Fallout: New Vegas. The first NWN was a bit of a disappointment for me and after finishing it, I never came back to it. So I skipped on NWN2. But I bought it recently (again, damn you weekend deals *shakes fist*) so I'll give it a shot in the near future. Let's see if Obsidian can make me like NWN.
Same goes for New Vegas. Fallout 3 was a bit disappointing, never even bothered buying the DLC for it and after finishing it I put it on my shelf to gather dust (funny, I was defending Fallout 3 before its release from the hardcore Fallout 1 & 2 fans (one of the best rpgs of course) and in the end I ended up as one of them after actually playing it), so I'm avoiding New Vegas currently as I'm afraid it's more of the same as Fallout 3. Though I'm starting to doubt my decision. It's Obsidian this time, not Bethesda. Guess I'll wait for another weekend deal.
I wish Obsidian were able to do what they want and publish what they want. I'd love to see a proper cyberpunk from Obsidian. Or a steampunk. Though steampunk is kinda tricky, there's probably only one game that came close to a proper steampunk and that was Arcanum. Steampunk tends to slide very easily to corny and tasteless department.
I guess I learned my lesson and next time I'll be there to help the sales sooner. I'm really interested how Dungeon Siege 3 ends up. The first one was kind of meh, never finished it, 2nd one flew by me and I basically didn't even notice its existence. Fingers crossed.
tl;dr version: <3 you Obisidian and your AP. Your bashed games are the best, don't let anyone tell you otherwise!