Logisitically it is not the easiest location to get to. It is about 20 miles from I-10 but does make a good break in the travel from New Orleans to Houston.
The only fee is the $1 donation at the gate and the tours run about every 40 minutes (the tour itself is about 15-20 minutes). The tour itself consisted of a young lady describing the process of making Tabasco, which is really simple since there are only three ingredients. The vinegar turns out to be a closely guarded secret. The guide then lead us to a room where we received three sample bottles of a variety of Tabasco flavors. We watched a 10 minute video that appeared to be shot in the 90's. You then exit through a door that allows you to see the factory. The factory was not in operation during our visit.
There is a room full of various artifacts but really, the goal is to get you to visit the store. So, off to the store we went. Plenty of sample including Tabasco flavored ice creams, coke and even Tabasco Reserve sauce with pretzels. Sort of reminiscent of the Cracker Barrel store if you have been to one of those.
All told the visit was about 40 minutes. The kids enjoyed it.