I've played 7 rounds outside, walked in them through Icelandic winter weather and done a lot of indoor practicing.
4 of the 7 rounds it was pouring rain on a muddy course, of the other 2 rounds, one was on the same muddy course and the other two were on a course that holds water like no other and the entire course was half-bog with lakes forming on some fairways.
I'be yet to get my feet wet and the grip has been exceptional. I've slipped twice, once on a bad footwork forehand on a very slick concrete tee and once on a legit 40° hill that was just a pure mudslide.
They've probably got the best grip of any shoe I've worn, but it's not a noght & day difference between them and the second best.
The drawbacks would be that they're very warm (can be an issue when you get into 50-60°F+ temps) and they are quite clunky. Definitely not too clunky to play disc golf in but I will be getting a lighter pair (maybe non-mid Olympus or Lone Peaks) as the weather starts becoming more manageable.