I use Vuetify everyday and there's only one thing I truly don't like about it. It's really hard to have double nested values inside of data tables. sort of a specific complaint that most people will never have to deal with but other than that it's excellent.

I haven't personally tried ionic yet but I absolutely intend to the next time I have any mobile project. I remember hearing a lot of frustration around ionic early on but lately, I've heard nothing but good things and I'm excited to try it.

If you are considering Vuetify and you're on the fence, just know that I find it to be a pleasure to work with.