This hotel was an exceptional value. I would recommend it for couples and business travelers, although in watching two young families at breakfast, the hotel provided exceptional service for them as well. We had an issue with the heat in our room, but the hotel staff was promptly responsive and provided excellent service. All of the rooms are "themed" (we were in Kyoto) which provides an interesting twist. The personal touches are what made the stay especially nice, including the welcome card and the books and maps in the room on what to do in Poznan.
I must note that if you stay, absolutely make sure to have breakfast at the hotel-- it delivers its value ten times over. It was likely the best breakfast arrangement we had in Poland and we had many of them.
Although the location is a bit off the main square, the extra few blocks walk is well worthwhile if you are touristing the area-- you are still within very short walking distance of all the main sights and the Cathedral is a very short distance away. Uber is an option from the train station. The neighborhood is excellent and there is a market right around the corner.