The location is alright. It is close to bus stops but it takes around 10-20 stops to get to the sightseeing spots in London. There’s a metro, but you have to take one (or a couple) bus stops in order to get there.
The building itself was old and run down, but it seemed like a safe location. Although, outside was very noisy (even at night) - there was a bunch of sirens and car honking.
The flat itself was ok. Because there was no air conditioning, the windows are cracked open (and I couldn’t find a way to close them) which lead to more noise seeping in. Also, the flat is on the very top floor of the building and there are only stairs (no elevator).