Overall the stay was 3.5/5.
The bedroom and kitchen spaces were clean and very accessible. Elias gave me a shelf to store my groceries as well as my own space in the fridge. They were very friendly and allowed me to use their spices/oils. The location is accessible as well (just 3 mins walk from a major UBahn stop with lots of places to eat/get organic groceries). The only drawback about location is that the bedroom faces a noisy street with a lot of construction in the morning.
If you are sensitive to cigarette smoke, this is not the place for you. On my first day I had to ask Elias not to smoke indoors. He switched to smoking outside but I had to ask a second time halfway through my stay to mind his cigarette smoking because the smell was quite obvious to me in the kitchen space. As someone with asthma this was a difficult lifestyle to accomodate.
Also, the livingroom/backyard was rarely accessible because Elias was almost always occupying this space for work, video games, or sleeping. However there is a couch in the bedroom where you can take your meals/relax.