If you click on a product picture (try the featured item), or product title, for more information, the screen grays, no popup window appears, and gives the illusion of being broken or frozen. While still gray, if you scroll down the page, you will see the popup window has actually popped up but is just hidden.
Since this is part of the customer checkout flow, I can not make this new store public until resolved. The popup DOES work in the correct spot, ie. over the visible window, if you were to just click the BUY button from the screen showing all products. Please fix the links from the product image and title link to appear in the same place.
Otherwise, the Wordpress plugin has been simple to use.