The location of this flat is simply perfect, in my opinion. And the best feature of this place.
Close to everything, even urgent care, which we unfortunately needed.
A very pleasant and spacious part of town, you can spend days just walking and looking at the buildings. Great restaurants around. Try Food Lab for breakfast. Also Seafood place was great. And a Czech food where locals eat - V Kolkovne.
Kitchen was functional but uncharacteristically we did not cook in Prague - too many great places to eat.
Decent beds.
Bathroom had a bathtub - which is great after walking many km a day.
Lovely views from the window, but the price for it - climbing to the third floor.
We were met my Misha's father. The instructions would be a pantomime, as he does not speak English. Fortunately knowing Russian helped quite a bit.
Misha let us keep the bags extra few hours when we had health issues on the check out day. In the stress of it all we left the toiletries bag behind, but arranged to retrieve it days later when we returned to Prague.
The only frustrating part was slow communication with Misha, who, as it turned out, was far away from Europe, thus in a different time zone...