The flat is quite tiny but overall fine, no major issues except that sleeping proved quite challenging: the street is actually extremely quiet, which paradoxically emphasizes every single noise. I was several times a night waken up by either people talking loud outside around 3-4am, seagulls or even the fridge, or by the daylight (some blinds would have been really useful to shade the 3 massive French windows); and this even with using sleeping mask, earplugs and keeping all windows shut (curiously enough I never heard any neighbours even once). The mattress is also a bit stiff and short.
Communication with the host is sometimes slow (up to 2/3 days to reply, partly due to the fact that it's a concierge system and you don't deal directly with the landlord). Finally although it was mentioned in the listing at a time where self-check-in becomes the norm I don't find it acceptable to have to pay 10 euros just to do a normal check-in...