The apartment is quite spacious and definitely great for a larger group or family. We were a family of 5 with 3 kids and their was ample space to move around. Plus, having two bathrooms is a big plus. Additional benefits of this apartment is that the pool table (smaller than a standard, but that is understandable for an apartment) was a great source of entertainment for our kids (11, 9 & 7 years old). We also were thankful to that the bedrooms had ceiling fans and the living room had a fan as the days were warm when in Prague. However, the apartment is located on the corner of two fairly busy streets. We had to keep the windows closed at night as it was too loud for us and the kids to sleep.
For us to get to the main areas of Prague (Old Town, by the river for a boat ride, etc.), it took us at least 20 minutes walking to get there. The apartment is near the National Museum and the shops on that street including a grocery store and drugstore. Overall, the place was a good deal for the price and the size of the apartment makes it relaxing after spending time in the city.