We definitely have one of the cheapest accommodations in the centre of Krakow. Here you won't pay for things you don't need and don't intend to use, while at the same time, you'll most likely find everything that you need, and you won't have to pay extra.
You have your choice of room: 2-, 3-, 4-, 6-, 8-, or 10-person. It will definitely be clean and comfortable. You'll fit with your group of friends, regardless of how many of you there are.