It was perfect! The apartment was clean and Thomas is a lovely and nice guy! He told us how things work and gave us some nice tips!
The apartment is very modern and has everything you need! It has a very good site and is very central! You can walk from there nearly everywhere you want within 10-15 min.
So if you are looking to stay in Prague I would definitely suggest you to get this Airbnb!
But hurry, when we are going to visit Prague again, we are going to get this apartment ;)