Awful experience and definitely would NOT recommend. 
I am based in the North West and liked a BMW X1 the dealership had for sale. I enquiried and was told a distance sale was possible (I have now been told by other garages a distance sale is actually very normal/ common now so shouldn't have been as difficult as it was). 
After back and forth on queries (I had to ask some of the same questions repeatably to get answers, I think I asked 4/5 times just to get the service history). I said to the sales person that if there was any cosmetic/ interior damage that wouldn't be repaired that we couldn't see on pictures/ videos (as it's a 3 year old car which we understood) to please just be transparent as it was in both our interests. I was very clear the car would be rejected if it wasn't in the condition we were lead to believe. 
After lots of re-assurance and a delay to the delivery date because he "wasn't happy with the repair quality" the car finally arrived in a much worse condition than we were ever lead to believe. Had we had transparency and saw the car's genuine condition, we would have never even reserved the car. 
We had a list of about 14 issues with the car, the main ones being the state of the interior (including what looked like a dog had bitten a tiny chunk out the door handle) even though we were told it was "perfect" which it definitely wasn't, for a 3 year old car.
We never received a video of the interior before it left for delivery as promised (which now makes a lot of sense) and the exterior video was that shown in a way that we couldn't have spotted anything if we wanted to. 
I was told GardX had been completed and the MOT would be printed in the car. The kit for the GardX was missing and no MOT print out was in the car. It makes you question whether the GardX was ever even applied especially because the back seats had dusty/ muddy parts on them. 
The car was rejected on the same day and plenty of apologies from the manager despite us paying for a insurance swap over and valeting to my old vehicle which would need to be paid again (private sale).
We were VERY frustrated by the lack of transparency and disappointed with the whole service in general. This experience has caused nothing but stress. 
There was also confusion with payment before the car was ready to be delivered because I was told by one person it could come from my husbands account as long so emailed and then told this was incorrect. 
The vehicle also arrived on my birthday which was a lovely stressful afternoon!
Then I had to constantly chase to get my money back, finally after just over a week I received £3,000 back and only after threatening a charge back on my credit card was the remaining £5,000 refunded (just under 2 weeks after the car was rejected). 
Despite the terrible service and lack of transparency, I thought the refunds would be actioned urgently to avoid causing me affordability issues purchasing another vehicle given the amount of money I had tied up. 
I did ring BMW Financial Services and they advised me they received their money back days before I did. Nice to know sending money back to them was a priority over a customer who was waiting on £8,000 to be able to purchase another vehicle. 
This experience has put me off using an "approved used" dealer moving forward. 
AVOID!