I stayed in this flat for three weeks and it was a very good experience. I worked remotely from the flat for two weeks and it went smoothly - there is a large enough table, good wifi. When there was a problem with the wifi one morning the team from Prague Days was very responsive and found a solution within one hour.
The apartment has a view on one of the most beautiful squares in Karlín, even Prague. The area is lively and yet the street is extremely calm (almost no cars going by). Best conditions to relax and enjoy!