Anna's apartment is extremely clean, modern, and cozy. The furniture and decorations reveal very good style & taste. The bathroom has the standard of a good hotel. This was arguably the best apartment I have ever booked through AirBnB.
If that is an important issue for you, you should realise that you have to travel a bit to get to London city centre. Expect more than an hour travel time, including a 15-minutes walk to Stanmore station. However, Stanmore station is connected to the Jubilee line which allows you to reach many important tourism hotspots in the city nonstop (e.g., Westminster), making it almost stress-free to enter London from Anna's place.
With everything else being perfect, there is a caveat which comes in the shape of an "ecoflush" toilet flush, which uses extraordinarily little water. That's not to everyone's liking - definitely not to mine. However, in the greater scheme of things, this was just a minor nuisance.