Had a fantastic time in Katie's beautiful home with a group of ten people. Especially enjoyed the large kitchen and the comfortable dining and living room. The two bathrooms ensured that everybody could get ready without too much of a hassle.
The location was a bit further away from Whitechapel station than expected, but nonetheless within easy walking distance of approx 10 minutes. The only minor downside were the problems we had with connecting to the wifi. But London has enough to offer, you should be out and about anyway!
Communication with Katie, who was on vacation, was great, with her checking in on us during our stay and ensuring everything was fine.
Definite recommendation!