We stayed one night, mixed feelings about this so I will devide it into good and needs improvement.
Good: Great location, Dominic was easy to get hold of and they very kindly made the flat ready for us early upon request. The bed was very comfortable and the flat is nicely decorated.
Needs improvement: A lot of the cutlery had bits of food on them, a pan in the cupboard had lots of pasta sauce still in it. No milk in the fridge. Some salt but no pepper or oil. No light in the fridge. Stains on some of the towels, they didn't look very clean. Upon arrival there was several smashed glass bottles in the car park and the gate stopped working as we were leaving so had to stay in Bristol another four hours with no car. I appreciate that some of these issues are not directly connected to the flat itself.
Bottom line: Not worth the money as it is now, but we would come back if it was cleaner :)