We arrived late to Pavlina place and there was no problem for the check in. They even agreed to make us food in there restaurant downstairs which was about to close. The food is very good, I reccommand it. A special plus for the chicken wings!
The flat was much bigger from what we expected, very clean and fully equiped. It is only 10min by tram to the old town and 40 min walking.
When in Prague, just go to Pavlina place, you will feel home.