A friend and I spent three nights in Prague. Alex's flat is perfect as a base for exploring the city. It's warm and clean and has two comfortable, separate bedrooms. It's not huge, but if you're spending most of the time out and about in the city it's perfect.
Alex and his team were very friendly and helpful, so picking up the keys and finding the flat were very easy and didn't take long.
The flat is in a nice area - it's only a short walk to the old medieval part of town an there's a great coffee shop on the corner and a few nice bars nearby.