We went to Gatorland last month and likedit.  It`s pretty laid back compared to Disney etc. and isn`t very big.  We spent about three hours there and felt like we saw most of it.
I thought it was funny, because the same guy does all of the shows.
You should check out their website and print off a coupon.  It`s not very expensive to get in, but every bit helps.
My kids loved getting their pictures taken with the baby alligator and snake around them. For around $6. the kids got a picture of themselves on a key chain.  Cheap souvenier.