Absolutely abysmal at times, and I only use it casually to follow some artists and such. It's beyond me how you still can't edit tweets, and the fact that bookmark folders are locked behind Twitter Blue for 4 bucks a month. It's not that much, but seriously? There's no easy way to categorize tweets or retweets to look back on later, and you lock such a nice QoL feature behind a paywall. You can't even search your own past retweets that are older than 7 days without using a third party utility.