I strongly recommend here to young travelers.
Super clean, calm, and very reasonable price.
Here is just 1/3 price, compared with other big hotels in the middle of city.
One short-point is a little bit far distance between the main tour sites. To the Old Town, it takes around 20 minutes by Tram. However Trams come within every 5 minutes, so there was no problem at all to go somewhere.
The strongest point of this hotel is the breakfast.
I had never expected that much nice quality meals based on the price, but every breakfast was just beyond my expection. So many kinds of fresh stuffs.
So when I visit Prague again, I'll definitely choose this hotel again.