Agree with everything that's been said here.
This release is absolutely the worst piece of software ever released by a big-name/well-funded company. It is garbage.
A way to downgrade is essential. Give it a new name if you need to fool Apple. Maybe something like EverWorks; or change the version 10 name to EverCrap.
I was one of the very early users when these guys got started (June 2009 to be precise). Highly disappointed and ready to bail for some other platform.