Karel's place couldn't be in a better location. The first thing you'll notice is that the place is absolutely plush, and this is further complimented by the incredible views of Prague that you have when you go outside onto the deck. The beds in the bedrooms were extremely comfortable (although we can't speak for the sofa bed). The bathroom is styling too, but when you shower, if the water backs up, turn down the flow rate.
I recommend Karel's place to everyone and will likely be back if I am lucky enough to return to Prague one day!