yes, expect a good-natured, non-violent mosh-pit. polka + slam-dancing = fun fun fun. it'll be a hot and sweaty mess if you're anywhere near the pit.
last time they played the club, i got swept up in the moshing and had to extract myself about half-way through the set, i was exhausted. i was shocked at how the moshing came out of nowhere - one second i was applauding their entrance on stage, the next i was physically lifted off the ground and thrown about 6-8 forward. maintaining balance can be a little tough when a human wall is making you swag back and forth that much. unlike a RATM pit, tho, i was never once worried/afraid, bouncing around to a gypsy violin solo is part of the experience. people were definitely looking out for each other. no one was hurt that i saw, and there were several smaller women in there so everyone can (and should!) join in. a great party.
i'd most definitely be in the mix if i wasn't traveling. have fun, please post reviews, impressions and photos (especially from the balcony - in fact, i'd love to see a video from up there, the pit must look insane).