Figured this would be best suitable in here. I recently bought a 3 year old Model Y from Cinich back in August, here is my experience in case it helps anyone who's curious or is thinking about buying from Cinch blind.
Initial Purchase - painless as you'd expect no surprises here, completed via online payment portal with the option of splitting across cards.
Part Ex - Valuation was by far and away the best price I could find across various dealers, and the usual webuyanycar clones.
Pickup - Picked up at one of their satellite locations, part ex inspection was painless as they gave my old car a 30 second look over and asked me to sign a few forms on an Ipad. Handed over the Tesla key cards once I had signed a few more virtual forms
Drive home and Inspection at home - I Was left with 50% battery more than enough to get home, when I checked there were a few scuffs, 1 being quite long but very shallow which blended out with 5 mins work.
After a few weeks of driving it I figured all was well and I was going to leave a glowing review, then
@GuruJockStrap posted about his car and number
plate/boot issue. I checked mine and sure enough they had done something similar and the screws were left tapping against the paintwork.
I figured it would be simple exercise of them apologising and fixing it.... Fast forward multiple phones calls stretching over 7 hours, the end result was nothing they would do and it was industry standard to have number plates mounted like that

. I asked for this is be escalated via email and again several emails later I got the same response industry standard and nothing they were willing to do!
Fast forward a few more emails and they agreed to send out a smart repairer.. 3 days later a mechanical engineer arrived and laughed at the workmanship and apologised saying nothing he could do, he wrote up a report saying it was embarrassing workmanship and it required a respray. I was shown the report and signed it, I figured that would be that. 2 days later another email saying it was fair wear and tear and should be expected of a car that is 3 years old!
I decided the best course of action was raising a section 75 with my credit card provider, contacting C level Cinch management via email and sent a physical letter to their legal address in London. A week later the director of customer services called me and spent an hour listening to me complain about the situation. To her credit she asked me what would be a happy resolution for me, I sent a respray of the entire boot at my choice of garage, swapping my car with an alternative or a complete refund with my preference being in that order.
Sure enough she agreed to pay for the respray assuming I didn't take the mick. Boot has been resprayed and number plate mounted correctly so a satisfactory resolution from my side.
Would I buy from them again, if the right car and part ex offer was appealing I probably would, however I wouldn't buy blind again and I would definitely be checking everything with a fine tooth comb before signing anything.
Hopefully a balanced review on Cinch is useful for someone as online they all seem to be extreme one way or another