I stayed at Charlie's house for three and a half month and all i can say is that he was the best host I could ever imagine.
The place itself is beautifully designed and the location in shoreditsch is amazing. I personally really enjoyed the contarast between shoreditsch and City of London right next to it.
Public transportation-wise is the location on Bethnal Green Rd perfekt as well. You're very close to the tube stations Algate East, Liverpool Street and Old street. Furhermore the overground station Shoreditsch high street is reachable in 2 minutes walking. Especially on the weekends the location is great because you're located between the famous brick lane market and the flower market on Columbia Rd.
Charlie himself was very helpful the whole time and takes care of everything what makes the stay very easy and uncomplicated.
All in all I can hardly recommend a stay at Charlie's house.