Apartment is as described. It is just enough for 2 people with little luggage. It is small, only slightly bigger than a hotel room, but it came with a very small (but fully equipped) kitchen. Washing/drying machine and microwave is very much appreciated.
About 8mins from an underground station, less than a minute walk from a Sainsbury (convenience store). This is a posh area, so the shopping and eating here is reflected as such. I wouldn't say this is a tourist area but it's not a problem as you can just hop on the underground and it just goes everywhere. Wifi was a bit slow for me so I used my own data plan.
Communication was alright. We didn't meet anyone but getting to the place and getting the key was easy enough (haha, that was funny for me. I didn't realise it wouldn't just dropped off easily. Was so nervous fishing for it the first time).