Don't know about that particular class, but I think it entirely depends on your instructor, the class size, and what you're hoping to get out of it.
If you know the name of the instructor, you might ask if anyone has experience with that person.
I think more important, though, is to make sure this class is covering stuff that you want to learn and don't already know.
Also, class size and interactivity. Some Chopping Block classes are demos, others, you do stuff. Sounds like this is you do stuff.
If there are few people in the class, and you can ask questions and get could hands-on answers to your hearts content, you may find that valuable.
Aaron