My parents have spent there some days. The location is great, a very quiet street, but at only 5 min walking from the most lively part of Hoxton/Shoreditch, one of the most vibrant areas of London, and less than 10 min walking from the tube (Old Street).
The flat was clean, bright and new, and complete of all the appliances. With the sofa bed in the kitchen/living room area, and a double bed, it can host up to 3 people in a pretty comfortable way.
Tal, the landlord, was on holiday for the full period and I only met her at the check out, but I could've reached her on her mobile at anytime. Anyway, the flat was good, our stay was smooth, and we had no problems at all.