Indeed, whereas in the start menu you could just search and press enter if the only result was a file to open it, with the start screen you will get a metro app showing results when you do do the same.
I hate the full screen switch, I have 2 monitors and at least 2 apps visible on both, I don't want something to go full screen and hide everything I'm working with. I'm using classicshell and I'll probably keep using it after this update.
Also sidenote: could they bring aero back as an option at least? I have a desktop with a mid-end graphics card, I really would like my desktop to not look worse than windows 95 did...