Me and ny girlfriend had an amazing time staying at Mauro's place for a week while we visited Prague.
The flat is rather small but i think for a couple it's perfect.
It is very quiet and and it has almost everything you need.
You have to be aware though that there is no microwave.
It is located in a really nice are with connections to the city center both by tram and metro.
All in all a great stay if you want to explore Prague.