We have hopefully addressed all issues which we’ve been made aware of. The launch time should be improved now, also. I was not yet perfectly happy with the usability of the new fly-in toolbars in full screen mode, so these have been revised, too, with less different toolbars, better recognizability and a different behaviour when undocking the toolbars.
Be sure to update to this latest version if you are using the previous beta, and also report back any bugs. If you have a version 1 key, you can use that to remove the trial stamp that gets added to your PDFs.