Agree with Tulip; I would have trouble mixing Pilates and Yoga in one class. I went to a combo class once and wasn't such a fan as taking these classes separately.

I was a big pilates fan for a couple of years until for some reason I switched completely to yoga -- perhaps internal, spiritual related... or maybe the crazy arm poses and headstands... or maybe I just found the right teacher. Now I'm a bit bored / uninterested in pilates, and find yoga deeper and more complex. YMMV.

My experience is that every class is different, and every class is the same. I really recommend trying out a wide variety of teachers (and forms/types), then dedicating some time to the ones you like to see how much they vary, even if it's from one day to the next.

There's a lot to learn, but in a few months you may have all the sanskrit names rolling off your tongue. I haven't been more aware of my body's change and development as I have been with yoga.