Actually, I lied in the title. I first used Visual Studio 11 and now I switched to Visual Studio 2012 RC. I installed one of the first betas available on my work PC and tried to use it as a primary IDE. I will share with you, what I found useful and what still needs to be improved, according to me. I hope, my experience will help you start faster with the new environment and warn you for possible obstacles on your way.