It runs really well now. I dropped it a few weeks ago due to some errors I was getting and the inability to see NSFW content, but that all seems to have been fixed.
Can definitely recommend. I turned on the “dark mode” and it feels quite slick.
If you’re on iOS you might want to try wefwef. I know there’s also mlemmy and mlem, but I haven’t been able to give them a try because I don’t have an iPhone.
Definitely recommend Memmy for iOS. I’ve tried both it and Mlem but with how quickly the dev has been updating and responding with fixes and changes, I’ve stuck with Memmy.