Eh. Not really unless you are doing a specific method (Bradley, Hypobirthing). Even then I think you could do ok without them.
As long as you're informed and read up on birth and birth practices, I don't think you need to take one of those classes. The one we took at the hospital was a total waste of time and I don't think it gave me any valuable info at all, but it was just a basic class that told me stuff I already know. Everything I *really* needed to know I learned later from the internet and books recommended by my internet friends. Ha.
As long as you're informed and read up on birth and birth practices, I don't think you need to take one of those classes. The one we took at the hospital was a total waste of time and I don't think it gave me any valuable info at all, but it was just a basic class that told me stuff I already know. Everything I *really* needed to know I learned later from the internet and books recommended by my internet friends. Ha.