Overall the flat was fine. Communication with Lauri and Mariana was great and Lauri refunded us the first five days when we could not arrive on time due Covid related issues. Unfortunately during our stay the elevator did not work for 9 days and Lauri refunded us some days for my disabled mother to stay in a hotel.
The location is absolutely top notch, though as expected it comes with increased volume on the streets in front of the window with people drinking and partying in front of the window.Though if you don't mind sleeping with closed windows, the windows are of high quality double glassed and keep the sound out.
WiFi works well in all rooms though stoped working completely like three times for half an hour.
There were some minor annoyances that cumulated a bit. The elevator broke in the first week (not the home owners fault), the kitchen door didn't close properly, the vacuum cleaner was not working fully and kind of falling apart, there was only one duvet available, the dishwasher broke three weeks into our stay, you could only use one shower at a time etc. All minor things that aren't that bad by themselves but pilled up to become slight annoyances. I think they can be easily fixed with minor investments.
Overall I'd give the flat a 8.5/10