I have stayed with SONDER before in Vancouver. They’re exceptional with their level of cleanliness and attention to detail of the room. Communication is generally great, though we did have an issue before the trip with regards to phone numbers. They answered our concerns right away so that is reassuring.
Room is great, clean and large enough for two people. There’s a fridge and a small safe as well. The apartment is connected to a Costa Coffee so during the day, there is access to all the apartment floors by cafe patrons when using the lift. Although they’d need a code to get into the rooms, it doesn’t make you feel very safe that anyone could potentially go to your room/floor.
The location is decent. The closest station is the Edgware underground. Closest attractions within walking distance are Hyde Park/Kensington Gardens, Marylebone, Paddington and Regent Park. It’s also about 40-45 min walk to SoHo. My sister and I walk everywhere so we were able to get to everything sans metro but it’s quite a walk to major distance. Just be aware in case you’re traveling with people (or yourself) who aren’t walkers.
Given the price for London accommodations, this is well within range and affordable.