the flat is OK. the location is very nice, there are trams around and a metro station just 10 minutes away. There is Letna park a couple of blocks away with playgrounds for children and a dog training ground, which has a great view over the city. There is also a small shopping center with food court and some essential shops just a block away. So, the location is great.
The flat itself is very clean (at least it was until we lived there for a couple of weeks). The only thing that was quite unpleasant is the shower: there is very little amount of water falling from the shower, so it was quite difficult to wash hair (as my family have thick hair), the amount is just not enough to rinse the shampoo properly and you have to stay in the shower forever to wash it off. What is more, it's quite difficult to adjust the water temperature.
I believe it's a nice place to stay for several days, regarding its location. Julius is a very friendly host and was very helpful.