Well, this place was convenient enough for my 9 years old daughter and myself for a not too expensive journey in London.
I would recommend it for people who can live with sharing a common bathroom (the only place where the toilets are, however) and the kitchen with other guests. I would also recommend to ask bedrooms on the ground floor (which is what we experienced) as there is also a bedroom at the first floor, just near the kitchen, which might be a concern for some people.
Overall, we had a good stay in Lina's house, feeling like at home and experiencing a very good remote communication with Lina (we didn't have a chance to meet Lina in person as she wasn't present during our stay).
I guess price/quality ratio is also good.