I have CCC set to the 24 hour interval, I haven't started it since last update (1.1.1.20) When I opened CCC it showed no updates available, just a matter of clicking the 'check now' or whatever it is, and the updates showed, Platinum, core plugins and Local Doc's.
As usual installation was smooth and painless, I really like the new start screen and all that is associated with it, I even like the tips, and not only do you get tips, but little ditties like this
"Music expresses that which cannot be said, and on which it is impossible to be silent." - Victor Hugo
Nice, I like that, looking forward to more

Doesn't seem to make much of a difference on start up, even if it was a second or to it wouldn't be an issue to me, that doesn't bother me, 30 to 60 seconds might bother me though.
The thumbnails work fine, as has been said, just save the project, and there it is. Would love a small audio snippet on mouse over, for people like me who have a good few projects imaginatively titled such as Song 13, song 24 etc

that would be awesome
The little notifications/news thingy up in the right hand corner is fine, to me very unobtrusive, reading some comments around the place I had a picture in my mind of something that jumped out and smacked me in the face saying '
here I am, read me'. I like it.
Looking forward to checking out all the other stuff, templates etc.
Great stuff, thanks all