We ate there on our trip last June and loved it! But it is much less popular than Cafe Orleans and Blue Bayou. They do have a lot of seating. I've seen a number of folks on these boards say they thought was food was "meh" or the menu just didn't appeal to them. I hear similar things about Wine Country Tratorria in DCA, which also frequently has reservations available.
As a vegetarian, I appreciated that they had two different BBQ tofu dishes (either salad or roasted vegetables). So much of the other vegetarian options the parks were Impossible meats, which get old meal after meal. My kid was less a fan of the tofu (they offer a kid meal version too) but loved the tater tots.
We sat outside and it was a nice location where we could people watch and see the Rivers of America. If there are items on the menu you find appealing, go ahead and reserve!