I went by with my family while I was visiting the Valley for Thanksgiving. Lots of cars in the parking lot, but the place is huge.
Don't let the crowd scare you off. The people seem to congregate in certain areas and most of the store isn't crowded.
I've been to these stores all over the country. This one seemed pretty standard except for the bowling alley (which I have no interest in).
My dad's a big fisherman. He was surprised by the lack of saltwater gear, given the location.
I'm more into hiking/camping and that sort of thing.
Should be a nice store to have if you live in the Harlingen area. You can (or at least I could) kill a half our in a good outdoors store, even without buying anything.