We stayed in this apartment for a month.
Marianne was nice, helpful and very flexible with the check-in and check-out times, which we really appreciated!
The apartment is really nice! We loved it! It has an amazing view, we could even see the London eye from there! Really neat, cozy and clean. Just as in the pictures.
The area is fine also. We went to the Battersea park a few times and our kids really enjoyed it! The playground is great! There are supermarkets, pubs and everything within walking distance.
With regards to transport links, there are no tube stations nearby. The options are: to take a 15 min bus to Victoria Station, or a 20+ min bus to Sloane Square. A good alternative is to take the bus to Clapham Junction and then take the overground. We usually had to make 2 or 3 changes. For London distances this might not be too bad, but it might be an inconvenience if wanting to go everywhere in just one ride!
Overall, I do recommend Marianne's apartment. It is really nice and I'm sure everyone will enjoy staying there!