If you have a short stay in SW London, I'd recommend Grattan's place. It was exactly what I needed for 2 nights. Comfy bed, great shower, heated floors!
Note that there is no TV, which I knew and was fine by me. There are big glass doors looking into the garden which looks directly into the big windows across the whole of their ground floor, so I kept the blinds closed. This wasn't an issue for me, but something to be aware of.
The check-in process was super simple as was getting in and out of the property.