I hit a home run staying here. Very clean and great location! While I didn't get to meet Barbara (her husband checked me in), she was great at answering questions prior and during my stay.
Accommodations: A very large bedroom, nice size bathroom (for London) and kitchenette.
The bed was a little soft for me (I like a firm mattress), but still provided a very good night's sleep. Very soft bedding.
Was able to purchase sandwiches and drinks at close Marks and Spencer and keep them in the refrigerator. Was also nice having a microwave.
Great water pressure and hot water in the shower.
Location: In my opinion you won't find a better area of London to stay. Kensington is great! The AirBnb is located approximately 7-minutes (walking) from High Street Kensington tube station. There is a pub less than a block away. Quaint sidewalk cafe is less than 5 minutes walk.
One thing to note, there are a few steps without a hand rail to get down to the front door. I did not have any problems with the steps.
Overall: I HIGHLY recommend staying here.