I absolutely love this hall, both as a performer and patron. I've been on the stage more than I have sat in the house, but I can confirm that the sound in this venue is one of the best in the world. The main hall has high ceilings and a wrap almost balcony that reaches both the left and right sides of the stage. The seats are very comfortable and ticket prices seem very reasonable compared to similar venues in the US.
In addition, it's very easy to get to this hall by metro, bus, and taxi. There are numerous delicious restaurants nearby to help begin or complete the evening after taking in an event. I highly suggest working a concert into your calendar when you're in Warsaw. read more