When I first attended as a study, I found them interesting because they were so different.
By the second meeting I was bored by the mindless repetition.
Watchtower studies were the worst because the study conductors asked leading questions and everyone just parroted the corresponding paragraph (any other answer being unacceptable).
It was somewhat fun watching little kids get excited when they gave the "right" answers, but it was also frightening watching both children and adults get brainwashed by the mindless, repetitive parroting.