We had a lovely stay with Sonder (our second time staying in a Sonder air bnb) and were not disappointed. This has super easy connections, with Edgeware Road tube station being only a 2 minute walk away- do be aware that there are 2 entrances depending on which line you are taking though!
The room was very clean, nice and quiet and the bed was very comfy. There were also lots of options for heating and cooling the room via a control panel.
The communication from the Sonder team was also excellent- we had a small issue with the room when we arrived as the arial cable for the TV was broken, but they replaced this the next day. They were also really helpful when we requested an earlier check-in time.
The room isn't huge, so may not be the best for extended periods of stay as there's minimal storage room, but for a shorter getaway in particular it was pretty perfect for us.
As other reviews state, there is no natural light in the room, but we spent only a small amount of time there so this didn't bother us. In fact, it helped us to sleep better!
The only downside I really found to the room was the shower- it was a lovely rainfall shower but the cubicle was a bit small so not the easiest to move in- however for only a few days stay it was fine.