I have been using Lemmy for 20 days, at first I opened an account at Lemmy.world because you can join without writing a text and waiting approval. I have been enjoying the experience overall but despite the admin teans best efforts Lemmy.world has been experiencing some serious performance issues. If you want to avoid that join a smaller instance, preferably hosted in your country. I joined discuss.tchncs.de today and everything is so much faster it has added benefit of being able to see beehaw.org posts too. It will improve not only your but all other Lemmy.world users experience too.
I signed on to lemmy.world in June as that seemed like The Place, but now I’m thinking of switching to a lesser populated instance. I still haven’t found an instance that I like enough to switch to though. Right now, even with the performance issues, lemmy.world still feels like the most suitable instance for me.