We had a lovely week's stay at Chris' appartment. The place is brand new, conveniently located and laid out in a thoughtful manner. The kitchen and bathroom are fitted with everything you may need, even for longer stays.
Chris was welcoming and very easy to deal with.
Don't be put off by the ground floor - we felt very safe and the small garden is charming (not to be missed when the weather is nice).
Kennington Cross busses, Kennington and Oval tube are very close and Vauxhall is within a short walking distance.