Some sound ok but then again the actual movie mix plays a huge factor here.
If the room doesn't seem to be leaning at times, it isn't working!
I remember Blade II there were wavefronts crawling all over the place creating whitecaps in your drinks and making popcorn levitate in the bag, etc. If a movie like Backdraft had that kind of effect, it would have been really whack!
One thing I cannot stand is when the explosions are clipped whether it's the theater system or the soundtrack in the movie. Inexcusable. Of course I'm biased and a freak when it comes to SQ!
I'd rather watch a movie on a 20" telly with knockout sound than a 200" screen with mediocre sound, but that's just me.