Really torn about this place, because it has some good qualities yet I wouldn't stay here again. First the good: The location is excellent, particularly for attending Wimbledon. It's on a busy but seemingly safe and active street, with a tube station nearby, lots of good restaurants, coffee shops and at least one pub very close. The price was competitive, although we would figure out why later. The place wasn't sufficiently stocked with some basic items when we arrived -- needed a set of sheets for the couch, hair dryer, hand towels, bath mats for slick floors -- but Miguel got a laundry list of items there the next day (we requested on a Sunday, so it wasn't immediately available). He also came over within minutes when using the microwave caused a fuse to pop. He was very pleasant.
Now the bad. Everything is done on the cheap. Inexpensive and uncomfortable bed and couch -- the beds are a step above futons, where you feel the wood slats supporting the thin mattress. The pillows are wafer-thin. There's only one key, which is inconvenient when you have multiple people going different directions. (We were told a previous guest lost the second set.) The towels and cutlery and basic items are a hodgepodge collection that give you the feel that they are merely there to check a box. That alone isn't a deal breaker -- well, the beds are -- it feels like the place is sorely in need of TLC.
This is a more difficult issue: While the location is very good, the place doesn't have great air circulation, so you pretty much need to sleep with the windows open in the summer. It is incredibly loud at all hours, with people right below you on the street, or revving car engines, jarring you awake in the middle of the night, particularly if you're in the street-facing master bedroom. A fan would help, but unless you're going to change out those windows, it would be quite hard to fix.
I think the place would be fine as a crash pad for a night or two, if you took the middle bedroom. But I wouldn't recommend a stay any longer than that.