I stayed with Maria for 2 months.
Short term:
As very well and numerously reflected in the comments, Maria’s apartment is very beautifully decorated and charismatic. Maria is up for some deep discussions.
Long term:
I feel ambivalent though when it comes to longer stays. Whether I would recommend it for longer stays than a few days, comes down to your personality - especially how sensitive you are:
Maria’s communication style is very direct and sharp when it comes to any suspicions of not obeying the cleaning/house rules. It is never personal, this is what she explained the first day of my arrival, yet if you are a sensitive person this sharpness might produce a good amount of anxiety.
Overall, I highly recommend it for short terms!!! For long term stays, I found Airbnbs in general not to be a solution, as I never ended up feeling at home/comfortable- this is very personal though.
Final tips: bring a sleep mask, ear plugs and slippers and beware that there is no oven.