Never heard of it, but sounds like a shrine to many of the things that have made this country great, and awful at the same time.
I have been to buc-ees more than almost any poster in this thread. Every time I go fishing or to the beach I stop at buc-ees. I have eaten at buc-ees hundreds of times over the 12 years I have lived here and have stopped at buc-ees at least 3 times that amount.
For years I was probably the most pro buc-ees person that you could find, my offshore fishing buddies were disappointed when I would choose buc-ees as our late dinner instead of anywhere else(they should have owned the boat/truck if they want to choose where to eat).
My buc-ees store has the exact fishing equipment needed to fish salt water in south east Texas. You go to Walmart, and half of the sport section or more is useless. The store I visit optimizes it's space by someone who understands what the customers want from a fishing/beach destination convenience store. The buc-ees that I go to do not resemble the buc-ees that most posters in this thread reference.
The owners managed to customize each store to the specific scenario that the consumer wants most. If you go to a buc-ees in West Texas/hill country you will find corn feeders and smokers. However since people on road trips want clean bathrooms the mega-buc-ees you see popping up all over the country almost always feature an employee in the bathroom ready to clean at all times.
Absolute geniuses that run the company, my one real complaint is that the selection of food has gotten worse as they standardized their stores. My favorite foods they used to offer have not been available for years.