The apartment is really great! I spend one month there and felt absolutely home. It overs enough space for all your stuff, anything you need to cook, a lot of glasses and cups, microwave, .... - the kitchen is great and big.
The light concept was very good, because you can operate all the nice lamps separately.
Internet/WiFi works perfectly without any problems and it is very fast.
The location of the apartment is wonderful. It's located in one of the best districts in Prague. You can find everything you need around the flat. I can recommend the little restaurant 40 meters away which overs great breakfast, lunch and dinner on the cheap (called "Na Hlas").
The entry hall is quite impressive and you love to come home. Everything is renovated and in an absolutely good state. It is only a few minutes (10-15) by foot into the centre of old town.
I will definitely come again soon.
The landlord is super friendly, helpful and always there for you to help. :)