It would be nice to be able to save versions of more items, e.g. modules, products, translations etc. The versions button actually shows on many of those items, but it only works for articles.
I could have wished for one more option: to hide the sound controls for videos without sound, but that's a minor detail.
I had some problems with the auto-play feature not working properly, but I filed a ticket and the problem was solved quickly and professionally. Very nice work!