Pros
Don't need any previous skills to work here. People quit so often, there is a good chance for promotions (don't expect a good pay though). Good place to build up some experience, but you are doing something wrong if you stay here longer than 2-3 years.
Cons
Education means nothing here. This could also technically be a pro if you are someone with no education. Pay is on the very low end when compared to other wineries of similar size. Supervisors tend to verbally abuse their cellar workers and treat them unfairly. Favoritism is definitely a factor. If you are going to take a salaried position, make sure you are more than satisfied with the pay, because you will definitely be overworked and likely underpaid. A negative environment.