This place is fantastic and really comfortable. 2 King Beds and 2 Full Baths for 2 couples was hard to find and convenient. It is centrally located and close to great restaurants, a few pubs, and good places for breakfast and coffee options. There is both a Co-op and a Tesco Ex not too far away and the Tube is an easy 10-15 walk. We got around no problem. Gina who is the host communicates really well and is super friendly! We'd use her place again.
We were about 60-70 minutes each way from Heathrow (including customs coming in and security heading out) using the Tube and H'row Express. The only thing I would say is there are steps, so if you have limitations, be aware.