Haven't had the opportunity to take a class with her and would guess the fee is rather pricey due to her reputation. But that being said, if you like her patterns then I'd jump on it cause she certainly is a wonderful teacher--I learned so much just following her instructions and tutorials on the one quilt of her's I made.
Now, if you just are not at all interested in the patterns, then certainly skip it and seek out a class that may appeal!