I've spent about five weeks at this hotel over the past few months, and it's definitely decent. The location is great if you need to take the train (which I do, because my office is in Meyrin). The hotel staff is pretty nice, although I have had some bad luck with some not-very-well-trained folks who hadn't yet mastered the check-in process and couldn't figure out how to print out my bill at checkout. The restaurant staff is generally pretty apathetic, but the food at the restaurant is fairly decent.
I did get one of the "classic" rooms with the weird half-door... And I also took a picture of the door because it was so bizarre! The bathrooms in that room line are also ridiculously tiny with absolutely no counter space. As I was staying there for two weeks, the front desk was kind enough to switch me the next day to a room with a non- Harry Potter door. Rooms at the back of the hotel are really quiet, but I had to download a white noise app for my phone when I had a room that faced the station.
Two things about this hotel that I actively dislike: while Warwick Hotels is a small chain, they have no loyalty program, which really stinks when you spend quite a bit of time there. And the beds are almost laughably hard! They are really uncomfortable, which is a shame because most of the rooms are pretty nice in all other respects. read more