ACA plan quality varies a ton based on where you are, which can make it either an OK option, or something you only use as a last resort and try to get off of ASAP.
In my state, there are zero individual plans offered outside the exchange—you call insurers, you call brokers, they'll all tell you the same thing, that every company is completely out of the individual market here unless they're on the exchange—and most years only two providers offer ACA plans, and 100% of those plans have terrible "networks" (which hospitals/doctors/pharmacies/urgent-cares/testing-facilities accept the insurance, for non-US readers).
It's literally impossible to buy an actually-good individual plan in my state. Even middling employer-offered insurance is usually overall-better than the "platinum" ACA plans. I mean, I assume the very-rich have some concierge-type options that are good, but for normal people, having to buy individual insurance here means definitely having bad insurance, even if you pay a ton.