Beautiful modern flat with comfortable mattresses/pillows and views for *days*. One of the bedrooms can get a little toasty due to the proximity of the water heater but that was easy to mitigate by opening windows and running the fan. Being able to fully open all of the windows and let in the fresh air was amazing!
The neighborhood is similarly incredible, with more restaurants/pubs than you could visit even if you ate out for every meal for a week. It is a bit of a hike to the tube (and up the five flights of stairs) but nothing that a family in good health can't handle (and it comes in handy when needing to excuse indulgences like scotch eggs, sausage rolls, sticky toffee puddings, etc)!
We did have a little issue with the wifi at first but Bertille was *very* responsive -- even mailing us a dongle in the hopes of getting us some coverage before the repair appointment! Ultimately it all got sorted and we had a really fantastic stay. I would definitely stay in the flat again, should we ever be lucky enough to return to London.