My favorite niche communities have come to Lemmy, but they're very inactive. Which is good and bad. There's much less filler content, but less substantial content as well. It's nice not having to scroll through miles of junk to find the good stuff, but I do wish there was a little more good stuff.
Overall, I think I'm glad for the change. I wasted a little too much time on Reddit for sure. Here, at least I can pop on and see that there's nothing new I'm interested in and do something else rather than scrolling through all that filler to find a nugget or two.