I ordered a booster package. At 75% off, it seems like a good deal and your site is comprehensive ... but, ordering was a pain in the butt.
1. I clicked to order and the error prompt came up. Finally realized I had to scroll to the bottom to fill out details. The form we need to fill out first should be right under or above the add to cart section.
2. Why do you need my date of birth, for a service that's going to be paid through PayPal? Intrusive AND unnecessary.
If it wasn't for the 75% off, I would have bailed out of the purchase right then and there.
Bottom line - shouldn't have to think that hard to make purchase.
Like your site. Your shopping cart - not so much.