Nope, sorry. We took a class at Petcetera and after the first one asked for a refund. The only upside was that the refund was easy to get. The "instructor" spent the entire class ignoring the dogs and talking about how great her own dog was. When a couple of people asked for help finding the right collar/leash for their dog it was clear that she was only allowed to suggest what that particular store carried.
I don't think you need private lessons or anything but group classes with an actual dog training place would be much better. Have a look around on Google, often there are different places and some teachers who do it more as a hobby than a business (albeit those classes are often not held in a fancy training building but rather in a community centre or similar).
With any class it's important to sit in on a lesson (just you, without your dog) to see how everyone is interacting and how the dogs are treated. Personally I don't want to see any harsh corrections, confused people OR dogs, and like to see the instructor noticing when someone needs extra help or explanation. I would NOT sign up for a class without seeing that particular trainer in action.