The place is in a great location just by the old town. The apartment looked just like the pictures, it was clean, quiet, and everything worked.
When we got there, there was a kettle missing, but the staff quickly brought one up. In general, the staff was very accommodating with every request (we were able to borrow umbrellas and a power adjuster).
There was a bit of shortage in towels and the kitchen is lightly equipped, but those are on the margin.
Overall, I would highly recommend the apartment to anybody visiting Prague. It's not cheap, but it's worth it.