A quite small but stylish and very quiet apartment at a premium location. We loved it.
I only feel bad because this apartment is (very well) run by a commercial company (very commercial, it seems, because we got a text about the checkout from the USA!) and this is what they talk about when they say "AirBnB ruins cities" - which also true for my own city. Apartments should be for inhabitants, not for tourists. We like AirBnB much more when we get an apartment from someone who is travelling but is clearly lived in. We are switching to home swapping as much as possible for that reason (and money of course).
That being said: Welkeys' communication was perfect, we locked ourselves out and we could pick up a spare from our contact person on her free night (thank you thank you thank you Bernadette!), the apartment was nice and very clean. So the experience was really good and even thought it was a lot of money. The coffee machine didn't work properly and this was not fixed during our stay, the only criticism.
Also: when sleeping here: turn of the heater and if possible open a window (it's quiet!). Since you sleep high, the air gets really dry and hot up there.