I've also used this product since Beta for Mac, along with using the older Flash Version on Windows.
This product is FANTASTIC if you use forms. This thing does most everything. It even Lets you purchase products within the form, then go to PayPal, Google Checkout, Authenticate, and 1 other for payment.
It has conditional items, drop downs, bullets, text boxes, logos, etc.
You can't go wrong for this price. I can't say enough positive things about CoffeeCup and this product. Their Support alone, is 2nd to none. And NO, I'm not an employee of theirs. This is just one of their Mac products with more to come. They have been mainly Windows based, but are now writing for PC' AND Mac OS X.