Great, here’s some feedback. I would encourage other users to weigh in as well, since I’m relatively new to Prezi Next. My apologies if the comments here are mistaken, and there are different ways of doing the things I want to do.
Overall, the issues with Next is not that you literally can’t do things you used to. It’s that they’re harder and more inconvenient, which makes the whole interface much more frustrating and less user friendly.
1. Adding text is harder. It used to be a single click: you point at where you want the text and you click. Now it is three clicks: you click insert, then text, then once the text box appears you have to put it in the right position. This would not be a big deal if this was an uncommon function, but adding text is literally the main thing you are doing when putting together a presentation.
2. You can’t zoom out intermediately. You used to be able to use the plus and minus zoom buttons on the side to zoom in or out a little. With next, you can click home and see the entire presentation, but sometimes you just want to zoom out an intermediate amount. (You could add a new zoom area, but again, that takes more clicks.)
3. Zooming in is harder. If I see the thing I want to zoom in on to edit it, I used to be able to just double click on it. But now have to scroll through the sidebar to find the zoom area and then click on it. If you have a long presentation, this can take time.
4. Jumping around while presenting is harder. If I want to jump to a frame, I used to be able to click on it. If I click on it right now, it goes to that frame, but then if I want to go forward from there, Prezi won’t do it – you always have to start at the beginning.
The result is that while the advanced stuff with Next is very cool, doing very basic functions has gotten harder, and made the user interface worse. And for those of us who use Prezi regularly – I’m a teacher who does all of my lectures with Prezi – this is a really significant problem.