The more I use it, the more I realise that Airbnb is as much about people as it is about accommodation. This place wins on both counts. Johnie is an absolute gentleman - great communication before arrival, endlessly helpful during my stay, and a friendly presence throughout. (he was even extremely understanding when I reversed into his car! No harm done, thankfully...) Johnie has the flat downstairs, and is thus available for any problems, but there's no sense of intrusion - you have perfect privacy.
The apartment itself is great - quirky antique furniture and big plants throughout give it a unique look, but it's comfortable, and warm, with a modern kitchen and bathroom, and a quiet bedroom to the rear. I felt thoroughly at home there, and well looked after, not least by the little touches like milk in the fridge and a bottle of red on the side.
Pretty Clifton is just on your doorstep, and the centre of town is an easy 15 minutes down the hill (the walk back up isn't quite as much fun, it must be said!)
All in all, highly recommended, and I certainly plan to use it as my base in Bristol for future trips.