Obsidian titles, for me, have always been ambitious and mostly enjoyable but deeply flawed.
FO:NV for example, I loved the shit out of that game but then found out a save game bug introduced at about the '60 hours played' mark meant that I was completely unable to finish the game at about 120 hours played... And this was after I had taken all the recommended precautions regarding save games to prevent corruption.
Alpha Protocol, as mentioned, was a great game irt gameplay, but was a tragic mess irt stability etc.
My major concern is that PE will end up like TOEE and other titles that the collective staff of Obsidian have had a hand in. Dumped on the market with deep bugs and very little support.