The apartment was very nice. Exactly as described and close to wenceslas square was close to the metro and tram and the Xmas markets. Several excellent and inexpensive restaurants nearby.
The only problem was the lift in the building. It is only big enough for 3 people at a time and there is a locked gate half way up the stairs. So make sure you have 2 sets of keys.
I wouldn't let that put you off. It is a great apartment in a very good location.