My husband, baby, and I stayed here for a 5 days and loved it! The location is great, near plenty of restaurants and small shops; and is walking distance to two underground stations and Hyde Park. The place is very modern and very clean. Sonder was very quick and kind when responding to my messages/questions.
The only downfall to our stay was the stairs. There is no lift and the stairs are pretty tight to carry luggage up and down; not really practical for someone who planned on using a baby stroller on the trip.