They did have a fairly clean brand, but I wouldn't compare them to say Anchorage, which is a US-based bank and qualified custodian. There are more regulatory as well as technical protections with a firm like Anchorage.

I would compare FTX to say Tastyworks. Clean brand, but they're not a bank, not insured, and not focused on custody, so it wouldn't really be prudent to store idle cash or crypto with them.