Overall we thoroughly enjoyed our stay.
As is quite obvious geographically the location of Old Street is excellent.
It didn't take us more than 15 mins to get anywhere we wanted to in London and 1 stop on the tube to Angel which is a fantastic spot for restaurants, pubs and nightlife.
Communication with Janet was great with no issues at all, we checked - in fine with no problems locating the key or entering the apartment.
Janet also let us check out late as we had an evening flight out of Heathrow which was very helpful and much appreciated.
We would recommend for future travelers.