It's quite a great experience living in Inji's room! The bed is really comfortable and big enough for 2 girls sleeping in. The kitchen and bathroom are both clean, and Inji has left enough notes to help us even though she is not at home. We kept in touch online and Inji sent me pics about how to get to the apartment, which is quite helpful!
There are another 2 bedrooms and 3 South Korean girls living inside, either of whom is very nice and helpful.
The apartment is near the Swiss Cottage Station on Junilee Line in Zone 2. We are able to arrive at any visiting sites within half an hour.
I would highly recommend my friends to book here if getting to London!