I don't want to rain on anyone's parade, but . . .
I tried Boma for dinner on my last visit after being told by several CMs that it was voted THE favorite WDW restaurant of CMs. I found it quite ordinary albeit with some unusual dishes. I am, however, not a fan of buffets and my preferences go to fine dining.
I would think that "picky eaters" might not enjoy it (but then again I appear to be in the minority.)
One of the marvelous things about WDW is the many diverse opportunities to explore new things. I'm sure your kids will find something they like and you will get a new experience while your at it.
Over the several trips we have made to WDW, my wife and grandkids seem to remember best the fun we had even when things didn't go as perfect as we wanted. What do you have to lose? The majority of people seem to love Boma.
As for me, I'll be at Victoria & Alberts or Bistro Paris. Have a great time
Grampini