Very good location, apartment is great, and the host is very nice. BUT there are couple things to mention:
1. The host requires to pay in cash a cleaning fee (amount depends on how many days you spend there) + local taxes. It was 40 euros on top of the Airbnb price for a weekend in our case, so it shifted from just bit expensive to quite expensive. This is disaster in case of the stay for business, and just unfair in general.
2. Apartment was very very much filled with tabac smell, after venting it during 3 hours with all windows open (it's winter!) the smell was a bit lighter but still very heavy. I am smoker in the past and tolerate very much this, but actually it was extremely toxic to be there; at morning I felt myself completely broken with headache etc.; my wife and kid have also spent a night there and I am just happy that our stay was not too long to get real health consequences. The problem seems to come because of a lot of old furniture which absorbed smoke over decades so it became a source of it.
I liked host very much, but I can't keep silence about those things which can turn your stay in a great city into a complete disappointment.