While I've been a user for both sites for years (member since '03 on gamespot and joined giant bomb 2 years ago), I'm a little concerned with the future of Giant Bomb, I know that Jeff and the GB Crew wouldn't jump into a deal they knew would end poorly.
I do have concern with CBS's record of buying sites then turning them to garbage, aka Downloads.com which is now a bloatware distributor. However I believe Jeff and the staff at Gamespot have put the past behind them and are ready to do what they do best, produce the best video game coverage and editorials.
I will say that leading up to the announcement. I did sense that something was going on behind the scenes. With the lack of original features over the past week, the chilli day stuff which was all casual and laid backas ever.