In terms of the UI/UX use old.reddit.com - I honestly don't understand how anyone uses the new default version. Comments are hidden, there are ads and other threads content on the page. It's literally impossible to use. It's such a disaster I can't understand how it ever passed testing.
The community itself when you get away from the big main subreddits isn't too bad. The best experience is had when you unsub from all the main subreddits and only browse the smaller niche ones. Although they can be pretty toxic too. If you're looking for better quality in depth discussion on a hobby or topic I'm sure you already know better forums, but if you want beginners guides and more superficial meme chat it's a great resource on the whole.