Excellent place in an excellent location.
The flat matches the pictures and was spotlessly clean when I arrived. The bed is comfortable, the shower is good, the fridge is spacious, the washing machine works perfectly, etc. There are lots of useful features like automated blinds/windows and temperature and humidity control. The whole building is very pretty and nice to be in. The location is ideal, on a very pretty street and with good access to everything you would want to go to in Prague. The staff were very helpful for check in and check out, as well as during my stay. I would wholeheartedly recommend it and look forward to staying again when I next visit Prague.