I feel your disappointment as well. We were there last week and it was a bit of a vacation ruiner for us *because* our small children couldn't handle it. If you are going to be with older kids or adults, I think you'll do just fine. Had I been there without tiny kids, I wouldn't have had a problem with it.
One thing, we refilled bottles at drinking fountains, but my kids hated how the water tasted. If that is a problem you run into, maybe go for the ice water at restaurants. And FYI, the fountains just inside the BTMBBQ waiting area has the coldest water we found.