I have it installed on both my web stores.
Very often while shopping online people have to go to product page every time they want to see larger item image as on the category page it is far from being detailed. Such "category page → product page → category page" store browsing is patience-requiring and time-consuming. It turns into a real headache in large stores where full-size images lose out to the necessity of displaying as much products per page as possible.
Whether you run clothes, shoes, accessories, adornment, or any other store where the product image plays first fiddle, you will definitely feel how the Product Preview Pro Magento extension enlarges your store usability and your customers’ satisfaction. Show your store visitors that you do care about them.
With the Product Preview Magento module, you shouldn't worry which screen dimension your customers' monitors have, because our Magento extension never exceeds it. Moreover, Product Preview Pro doesn't block any native Magento functionality – your store visitors will meet no problems with going to the product page by clicking the item picture, even if the preview image is already displayed.