Yeah I've never had a problem with Coinbase. They've always been awesome. I've dealt with a lot of poker sites that get the exact same kind of complaints. Usually when your money gets frozen it's because you were doing something strange... like buying in for $40,000 then trying to cash out for $50,000 the next week. Of course, the people complaining rarely ever tell you the shady thing they did to get their account flagged.
The simple truth is that crypto is becoming much more popular, and Coinbase is likely having major scaling issues. They aren't trying to steal people's money. They are just extremely overworked.
Binance is amazing as well. I would say it's the best centralized exchange in existence, but seeing as I can't turn my USD into crypto there yet Coinbase is my link to the outside world.