Lovely stay near Hyde Park. Seren (and Luna) is an excellent host who made me feel right at home.
The neighborhood is very walkable with two tube stops around the corner + notting hill & paddington just 5-10 walk + tons of coffee shops and bites to eat nearby.
Couldn’t recommend this any higher for solo travelers or a couple looking for a clean simple flat, with a comfy bed and phenomenal access around the city and to/from Heathrow.
One bit of advice is to bring earplugs or headphones if you are a light sleeper because the tube is right behind the building. But do not let that stop you from staying here!