About the best I can say is, it works. It's pretty limited though, and for US$39 I think you are entitled to expect something that has a great deal more functionality than this lightbox extension. Without a good deal of code knowledge (and you shouldn't need that when paying this kind of money) it does not sit comfortably in any design. You can't, for example, get it to sit in line with other graphic buttons in an article. Two questions always come to mind when I buy something like this. Would I recommend it to a friend? Would I buy it again? The answer in both cases is definitely "No".
We are not sure if you have purchased the extension as the price is US$35 not 39.
We have both modules and plugins and you can have it inside an article or a module position like our demo.It fits comfortably to any design and layout as we have parameters to control the dimension of the image as well as the gallery.
You can open a support ticket so that we can help with aligning the image gallery and a graphic using the Joomla Editor .