If you are reading the reviews, you are probably on the fence, trying to decide where to stay. I have been to Prague multiple times, I stayed in many different places. I would share this small piece of wisdom. Klára's flat is perfectly located to have and enjoy a trip to Prague. The place is extremely well placed, all while being in an extremely quiet street. There are great coffee/breakfast/lunch places around the flat, so you can maximize your time sightseeing. If you want late night bars, they are not too far away. Keep in mind, it is almost impossible to escape the tourist crowds, yet the flat is located in a very quiet area.
Klára provides you with enough information to keep you busy for weeks. Everything you need in the flat you will find. The bed is comfortable, the place is clean. Everything you would expect in a normal Airbnb stay. I hope this helps, enjoy your stay and enjoy Prague.
One last tip, try out Hemingway's bar right around the corner. Yes it is a little pricey for Prague, but the cocktails are fantastic and the atmosphere is superb.
Cheers.