With all the breaks for tea/lunch/tea, you would have maybe 1-1 1/2 hrs. with each instructor? That is only enough for a brief overview of their specialty, or a brief in depth session on one topic. Also, when you factor in time lost to settling down, finding your supplies, and focusing, you're losing 15-30 minutes right there. I think I would have preferred 2 days with 4 teachers, or even 2 teachers, where you get some quality time with the instructor.IMHO
I think I'd have to pass on it.