Location is everything in this TINY studio being located just a slow 7 minute walk to the South Kensington tube station, a stop or two from the heart of London and a direct link to Heathrow that I recommend using it is so simple. That being said, I will state some cautions from this short, 75 year old couple. The bed is high and has walls on 3 sides so the person on the inner side cannot get out without waking the other. The shower/tub is a high step and a difficult entry/exit for anyone with balance issues.
I suggest downloading the interactive tube app that will indicate the exact train to take and get a low cost SIM card to allow use of Goggle Maps for walking around on these curved streets that easily disorient.