What a fantastic flat! We stayed here for a week in November. It is in a wonderful location and accessible by bus and tube. The flat was super clean and very comfortable. There are some stairs - not a ton but a few to get into the flat and then a few to get to every level. The beds were very comfortable and the bathrooms were spotless. Robert is a gem!!!!! He was so communicative prior to our arrival and met us at the house for check in. He walked us through each level and gave us a tutorial on things such as using the washer/dryer, heating, etc. Robert also gave us a welcome kit (milk, eggs, bread, biscuits, butter) which was nice so we didn't have to rush out as soon as we got there. The kitchen also has some staples such as sugar, salt/pepper, etc. It has a Nespresso maker which is a nice touch.
It rained quite a bit while we were there so we didn't get a chance to use the garden but it's lovely. Would be perfect for a warm sunny day.
Cannot wait to stay here again!