We had stayed in NH before in Madrid and it was very nice, this one in Bologna does not feel like a 4 star hotel.
We booked a family room, they gave us a 2 rooms with connecting doors. The place is listed as family friendly, we had our 3 year old with us and there is really nothing for kids, not even a playground.
The room was not very clean, the bathroom had mold in it, the room smelled like someone had smoked weed in it.
Breakfast was ok, and staff were great and friendly.
The hotel’s restaurant was closed for the first two nights, so imagine arriving with a toddler in the evening and no food available at the hotel. Luckily there are plenty of restaurants around.