This was, by far, the best Airbnb experience I've ever had: Spotlessly clean; stylishly designed; comfortable and cozy; and wonderfully located, in a quiet residential neighborhood which is a stone throwaway from the center.
Oh, and the little things: the espresso machine with a box full of capsules, the books, the bottle of Vodka in the fridge...
All in all, a wonderful stay indeed. One thing though - I never had any contact with Sofie or "her team" during the stay, which was absolutely fine by me, because everything was perfect and I didn't need to. But I can't attest to their availability.
Great place to stay, and the first one I'll be looking for next time I'm in London.