Wonderful flat - absolutely HUGE, classic high ceilings and gorgeous parquet floor.
Very well located too, you can walk to Petrin Hill, or across the bridge to Wenceslas Square, or up to the castle (or take the tram if you prefer, the stop is right outside). Recommend Cafe Savoy round the corner.
This flat was perfect for young children as there it loads of space and nothing breakable! :)