The apartment was awesome for a week-long trip to London. 20-40min by bus or metro to the main viewpoints. The room was small but big enough for 2 people and we had enough space to store our clothes and other things. Cath was very nice and helpful. We had some space in the fridge in cupboards to store our food. The bathroom is big and convenient.
I would recommend staying here if you are visiting London for a couple of days, we loved it!