We found Fred's place without too much difficulty and travelled there on the subway from the airport.
His place was spacious and good for our family of 4. The building and yard are secure. The 24 hour concierge located around the corner was great for check in and out. The kitchen had everything needed to prepare light food or snacks. The apt was quiet. For us the only half glass in the bath shower was tricky. My son used the gym located in the complex to exercise which was nice. If we were there longer I am sure we would have used that feature more. We were able to walk from there to Tower Bridge in about 15 minutes. Communication with Fred was very good. We did not meet him in person. We had a good stay. Thank you Fred.