A lot of people were upset when they changed the cut of beef away from prime rib etc. For me personally, not that big of a deal.
A lot of people also say it has gone down a bit in quality etc., but I think the dining pan, all the free dining etc. has made it that way for many restaurants. Two more examples that are not nearly as good as htey used to be, but still serve decent food are LeCellier and Crystal Palace.
They have to keep up with the high demand and keep costs down. Do I consider Boma a 5 star restaurant? Of course not, but we love going there and think the food is fine. If I want something a bit better, we go to the signatures like California Grill or Narcoosees.
But Boma to me is the best buffet type restaurant in Disney and normally we do not like buffets except for breakfast. We love the bold flavors and spices they use, plus my one picky child who likes simple food can get what he likes there as well.
And we think the atmosphere is fun too. We always enjoy our time there!