Unless you are on a hairshirt budget or part of a drunken bachelor's group, you'll want to avoid this 'hotel'. We paid more for a 'suite' (that actually meant it had an en-suite bathroom as yes, many of the rooms don't). The housekeeping was abysmal, we repeatedly had to approach reception and ask for loo rolls, towels etc. Breakfast could be delivered to your room, but was a scant affair: juice, coffee, bread, yoghurt only. There is no restaurant in the hotel and very few within a short walking distance. There's a police station across the road - enjoy the din of sirens on weekend nights and the locatio is lamentable...you have a ten min walk to Wenscelas Square (the top end, by the Museum) which means another 20 down to the Old Town Square (and Wenscelas Square is not salubrious after dark) and then another good stroll to the other side of the river. Taxis are too pricey in Prague so prepare to burn the shoe leather.
I just struggle to think of anything positive to say about this hotel; maybe just that the staff are hospitable, but that's it