Most of the problems with Carvana are the same problems you get at any used car dealer, just magnified by scale. All of the title/registration problems. Financing. Availability. Communication. No better or worse than any random dealer.
My first car ever (25+ years ago) I received the wrong plate from the dealer. My dad and I noticed it and ran back to the dealer a day or two later. Good thing they didn't give away the plate they were supposed to give us.
But months pass and they don’t pay it off..
Then, after escalating, they pull a fresh payoff amount directly from your bank and pay that.
Leaving the buyer with either:
a) late payment marks on their credit from the old loan not being kept current with monthly payments, or
b) several months of lost monthly payments towards the loan for a vehicle that is no longer in the buyers possession
They send you into a revolving door of phone associates.
Like comcast, but for cars