eBay is an okay place to buy phones
Just keep in mind of phones that are sold at a weirdly low price and have very little description. If it seems too good to be true, it probably is
Most fairly priced listings are honest about the phone having a bad ESN or damage. There's exceptions but eBay will almost always side with the buyers.
I've used swappa too though, and it's a nice place to buy phones.
pojr
I summon it. You spell it.