I bought an iphone 7 in excellent condition. I was out of town when it arrived so it sat for 3 weeks before I opened it. The packaging was legit, it looked sterilized. But when I opened it there were crumbs all over it which i thought was weird and it had a few more scratches then were listed and expected from an excellent condition rated phone. The phone itself functions properly so no complaints there except after using it for only a couple weeks, the battery doesn't hold a charge anymore. And of course letting it sit for 3 weeks and using for 2 put me past the 30 day return policy so I didn't even try to return. I've never used uptrade before so I don't know if it's them or if this is just what happens when buying used even when spending a little extra to get a phone in better condition.
..................Update.................
After writing my review above ^, I received an email from Uptrade informing me that a supervisor would be contacting me shortly to try and remedy my experience. It has been over 3 weeks and I'm still waiting for that supervisor to contact me. What a joke.