Excellent location, right near Old St Station and the trendy Shoreditch area. Our hosts were responsive to our needs (delivering us an extra bed for a couple of nights).
One drawback is that there are usually many other guests in the flat and the walls are quite thin (also the floors tend to creak); we did our best not to disturb people during the evening, which meant very little talking or laughing.
The washer and dryer were out of order during our stay, so no laundry for us, but you'll likely have a different experience.