We had five days at Annikas apartement, and we had an absolutely wonderful time. The apartement is really 'high class' and is placed in a nabourhood that has both calmness and lots of things to do.
5 min's down the road you have Portobello Rd with all the nice little shops and midprice restaurants. 5 min's the other way towards Notting Hill station you have all the exclusive shops. Take care :)
Notting Hill Underground is a 15 min's walk away and you can reach the shops and museums in midtown in another 15 min's by the Central or District Line.
If you are keen on a jogging tour in the morning you have Kensington Gardens 1 mile away.
This is a highly recommendable apartement and Annika is a very professional host.