"Nice cozy apartment" is a converted garage half underground without windows to the outside.
It tends to be noisy both with traffic and with people congregating for long chats and smoking. The separation from the street is the garage door, now a single glazed set of doors and windows that are blanked off with white foil and that do not open more than one inch ajar.
"Highly finished" means the extractor hood was broken and dirty. Wall skirting is detaching from the walls in places or is gaping.
In the bathroom the shower head was broken and the person who did the check in for me did not respond to messages, so it remained broken for the duration of my stay.
Otherwise the bathroom would be quite nice, plenty of space and light.
All in all it looks like the place needed a bit of loving care. Maybe it's the end of the season wear and tear, but the description did not match what I found.
The noise and problem seems unfixable.
You need the key to get out, suboptimal if there was a fire.