Overall with was a very good experience with a very good communication. I would totally stay here again and I would totally recommend for people that want to stay in a good location, but don't expect anything fancy.
Good points:
-the location is great, within 2 min walk you have 2 stores, Southwark tube, bus stations, and if you want to walk, in around 30 minutes you can get to Big Ben, London Eye, London Bridge, Tower Bridge and most of the central positioned attractions of London
-the host, Simona, replies pretty fast and if you have something you need (like we needed some European plug adapters for the power source), I'm sure she will try to help you
-(this one is for smokers) you have a balcony with a table and an ashtray where you come smoke, which is really great
-you have basically everything you need to enjoy your holiday in terms of utilities: good wireless internet connection, microwave owen, fridge, cooker, kettle for coffee/tea, etc
-the bathroom is clean enough and the shower as well (also the hot water is fine)
Bad points (more like things to be aware of, for me there were not such bad points) :
-don't expect that everything is fancy in here, like the sofas and some pieces of furniture look a bit old, but the cooker and the fridge look like brand new, but... in my opinion, everything is at least in a decent condition
-when we stayed, the temperature outside was like -5 C degrees and sometimes it was a bit cold in the apartment (even if we turned on the heat), but I think you would have no problems if there are at least 0 C outside (so just be aware of you're travelling in winter)
As a conclusion, I would rate the place as 9.5/10 considering all the aspects (communication with the host, location, price, conditions, etc). Hope this helps! :)