Lovely apartment, great views of Petrin Tower and the park, super peaceful too! We found it a very cosy and comfortable place to come back to at the end of a long day.
I've never been to Prague before but i found the location to be great. Mala Strana is every quaint and clean, it's walkable to the castle and the funicular stop to Petrin tower is around the corner.
My only comment is the apartment is on the 4th story and there are no stairs, so it's a bit tiring to get up.
On the whole, I would definitely recommend this place to a friend.