The place is in an ideal location, stylish and spotless (and yes, after some research, I've found out that even Mozart and then Mahler lodged in the same building in their time :-) ).
For the money, it's a great place with decent budget lodging and breakfast. If you're not too much interested to spend money in an accommodation and want to explore Prague, this is a great stay. Also 3-5 walk to the Metro station
Location is good. Staff helpful rooms equilivent to travelodge and Premier Inn in uk