We (a group of four) stayed at Valentina's for four nights. Valentina gave us two rooms which were both adequately sized and very clean. The apartment itself was nice and well decorated. Though we hardly used it, Valentina did allow us access to the kitchen and fridge.
The apartment is located very centrally with quick access to both Rotherhithe Station and Canada Water - and with great views of the Thames only a couple of minutes away.
Furthermore, the host was very accommodating and flexible with regards to both check-in and check-out. Despite our late arrival at midnight due to a delayed flight, Valentina was outside in the rain waving us in when we got to the apartment. Communication with Valentina was also quick and efficient both before and during our stay.
All in all we had a great time at Valentina's place, and we wouldn't hesitate to book it again.