First, if you are looking for a fancy four star hotel, then this isn't it.
What it is is simple but decent standard, with comfortable beds, decent air conditioning (a necessity in Geneva in the summer), helpful staff, and in an ideal location (peaceful neighbourhood, but right by Jet d'Eau and close to all the sights - and near a mouette boat landing place). Would definitely stay here again, far better than being in the noise and traffic on the other side of the lake.
Don't bother with the breakfast, there are plenty of bakeries and cafes around, and on a nice day you can eat in the park or by the lake. Don't forget to ask for your free travel pass (which you get for paying the city tax) which works on the busses, trams, and mouette boats.