We stayed at Jonathon's place for two nights as we were getting married at Islington Town Hall which a 15 min walk/10 min bus ride away. It was the perfect location for us and perfectly sized for just the two of us. The apartment is decorated really nicely and there was pretty much everything we could need for a short stay including a fan (essential in the hot summer weather!)
The apartment is sandwiched between a really busy road and a train line so if you're looking for a peaceful quiet place this is probably not for you. Freight trains run all night so if the windows are open it's pretty loud! I recommend earplugs ;)
There are loads of cafes, restaurants and bars in walking distance as well as the shops on Upper St so this is a really great location to explore this part of London.