The apartment is cheap and accommodates a large number of people. The location is also spectacular. You are a one minute walk away from almost anything you need, coffee, food, money changer, subway. You are a ten minute walk from Old Town Square, the hub of tourist Prague, so location is far and away the best thing. The apartment itself is utterly no frills. It's just a large cheap empty space and in its location that's a good thing. But don't expect any decor or creature comforts, just plain beds and plain walls and an empty kitchen and bathrooms with no shower curtains. I think that the apartment is set up to accommodate the Prague party crowd and so they don't want anything breakable in the house.
If you're just looking for a cheap place for your large group to sleep in a great location in Prague and you don't care about the apartment being nice, then this is the place for you.
Given all of that I would normally rate the apartment a 4 but I could not in good conscience do that because I feel like I have to say something about the shuttle service. This is my first Airbnb review that is not a 5. The apartment was simply to bare and lacking any personal touch so I think a 4 is fair, but the shuttle service was a real problem and I feel like I had to deduct a star because of it. My group arrived in two stages, 8 in the morning and 8 in the evening. The first shuttle was fine. The second shuttle left the airport before my people came out. They encountered unusually long lines at passport control and the driver left without contacting me. When I called the office running the service, he refused to go back to get them. We ended up having to hire a van on the spot at the airport which thankfully we were able to find. And here's what made it worse. The shuttle service was 77 Euros. The taxi at the curb was only 40. So not only was the shuttle unprofessional it was very overpriced.