The place is small and cosy, lovely couch & very comfortable bed, a little "cave" (to store your suitcase, laundry etc.) and what I loved was the little electric heater for colder days if needed.
The microwave oven was a treat (not so common for most Geneva airbnb's) and laundry could be done for free (have to bring/buy your own washing powder though & there's some demand for the two washing machines and one dryer in the basement, especially on weekends ;)).
The location is excellent, one can see the Jet d'Eau from the window (if you lean a little :), and get to the lake in 30 seconds. Lots of restaurants and small shops around; bus stop (25 & 1) practically at your doorstep, walking distance (5-6 minutes) to Cornavin. Good for exploration & quite functional.
One little caveat: there is no dedicated space to work (only the dining table and chairs, which are not that comfortable if you have to sit & do home office for several hours), with no reading lights/desk lamp to facilitate concentration. However, it's convenient enough for checking e-mails/brief surfing sessions as needed & nice to come "home", cook a simple meal & hang out on the beautiful couch!
Overall good value for money and David was super flexible in allowing me to book & check-in the same day at almost zero notice after another booking fell through last minute. Thanks a lot for everything!