Stayed at the qubus many times, all rooms are of a similar good standard. Some of the rooms face out onto the main road so if you are used to sleeping in complete silence then consider asking for a room on the quiet side of the building.
For me the breakfast choice is one of the biggest benefits, the selection and choice is particularly here and beats all other hotels in the centre of gliwice by a long way. Local and homemade food is provided in addition to standard breakfast items.