Nice, clean and homely apartment, with everything the four of us needed. It is very well placed, close to both Elephant and Castle station and Kennington station (took us only about 5 min walk to both of them). There are also small food stores and restaurants nearby which was handy.
Kien was very helpful and friendly host and willing to do our stay as nice as possible. He gave us a lot of useful information and answered all our questions well and fast.
We absolutely recommend it :)