I'm coming from a 5dc to 5d2. Nice to have the automatic sensor cleaning.
How often are you wet cleaning or do you not need to now? I know situation will dictate, but generally speaking. I'm careful changing lenses, keep body pointed down, turn power off, etc.
I've got some eclipse solution, need to check if it's regular or E2 because they flipped flopped on 5dc for a while. For those using Eclipse, which do you use for 5d2?