I've only heard
bad things about it, sorry. Overpriced, crappy food, chain restaurant vibe, etc. But I have NOT been myself.
It's totally not my kind of place though. There's one close to my office and it doesn't seem that busy.
I adore cheese fondue -- probably my very favorite food -- but am very picky about it.
What you are describing with the chicken and broth is shabu-shabu.
There are a number of great shabu places in Boston and environs. Shabu-zen
has a couple of restaurants. You might want to try one. They are really fun.
Also, check out Chowhound