The flat is great!
It has a fully working and great new kitchen, two bathrooms with a lot of space, and is just a walk from the city center.
Praha 7 is great, you can find lots of cafés and bars only locals go - two big parks (with a beautiful view), and if you don't want to walk the tram station is just 200m away. Also there is a supermarket down the street, so you don't have to worry about finding one.

Lucia's Mom and Brother welcomed us at the flat and had many recommendations where we could go. They also had a list of the best bars and cafés in town!
Overall it was a great weekend in a very nice flat!