The hotel was 5 minutes from the main bus/train lines in Geneva (two grocery stores in the train station). I stayed more than two weeks and had a studio room with a kitchenette--it was great. Room was clean, tv had HDMI, kitchen had Nespresso machine, water kettle, pots/pans/plates/silverware, dishwasher. Lots of restaurants in walking distance. All of the staff was friendly, spoke great English, and was extremely helpful whenever I had questions.
If you are staying for longer periods, the room is cleaned once a week (shorter stays there is no room service I have read). However, there is a place to put your trash bags at the end of your hallway which was really convenient. If you wanted an extra room servicing you can request and pay for it, but I didn't find that necessary at all. I only mention the room service because I have seen reviews complaining about not having any--but consider the price you are paying and the location and other amenities like a kitchenette.
If you are in Geneva for business for more than a week or two, I highly recommend staying at the Hotel Adagio.
Review left on 01 March 2020
I stayed at this hotel for a week. Kitchen is available and convenient for a long stay.