I'm getting used to the new version. I reminded myself that when they do big updates on applications at work, you get used to it in time and forget how it used to be after a time.
It's been a different experience in different languages. I'm about 4 months into Dutch from scratch, and it seems to have kept my progress there. Welsh I've been doing as a backup to proper, real life classes, and I could skip a load there.
German, French and Spanish I've been doing to keep my hand in, having done them to A-level years ago, and then lost a lot, and they seem to have sent me back quite a way. I might try and skip some levels at the weekend when I have more time - some days, it's hard enough to fit in a single lesson, and revision won't harm me. It is annoying, but I try to ignore that.
There are things I don't like about Duolingo anyway. I like a good verb table etc, seeing the patterns, so I have bought a couple of Dutch grammar books to get explanations that Duolingo doesn't supply (there are still some aspects of personal pronoun use i don't yet gully get even then.) I know others are put off by language learning by too much focus on grammar, so I suspect it's just a question of learning preferences - and in any case, using more than one tool for learning is usually a good thing.
Oddly, I find one of the most off-putting bits is the app icon on my phone now shows as an angry fiery owl, rather than the calm green one it used to be. I know this is about the least important thing, so it's weird how it bothers me.