Kate place is convenient to reach from Heathrow Airport. The cheapest way to reach her place is to take FREE TRANSFER via TRAIN (EXPRESS CONNECT) from other terminals to terminal 2 to go to Heathrow Central Bus Station, and then take U3 bus which drop at Swan Road, just a few minutes to walk to her place.
Note: Do not take underground/tube from other terminals - it is NOT free.
And her place is very close to Windsor which is a small town with a big castle -nice place to visit.
Also, Kate provide nice breakfast and comfortable bedroom. The bathroom and toilet are only shared among us and Kate and her husband (Matthew was away during our second visit).