Alina's unit is central to almost everything. The Sloane Square tube station is only 100 meters away. The Partridges Supermarket and McDonald's are within 10 minutes walk. The famous Harrods Department Store and V&A Museum are also within walking distance.
There are many restaurants and cafes in the vicinity too. We have been to Caffè Concerto opposite the Partridges. The food there is sumptuous and yet inexpensive. Definitely worth a try.
Alina has been very generous in providing everything we needed. After spending three weeks in Eastern Europe before coming to London we were elated to find that washing powder was also provided in the unit for the washing machine. While we were travelling in Eastern Europe a lot of 4 star hotels including the Hilton did not even provide a kettle but we could find not just a kettle but an espresso machine with coffee pods too.
The only shortcoming of the unit is that it is very close to a busy road so the bedroom can be quite noisy at night. But for a busy city like London I believe traffic noise is something people have to live with. In Hong Kong we have the same problem too so a pair of good ear plugs will help if you're from a quiet place.