Very easy to use and configure. I had a problem with comparability with another block but the creator of the add-on created a fix within a couple of hours. So 5 stars for support too.

You can spend any amount of money on an addon and never be too sure about how it will perform for you or how responsive the author is, but I did a review of some of the tab addons and selected this one. Boy, was I happy with it. Using Stacks for the first time, it was pretty straightforward and when I found a glitch, the author corrected the problem and updated the addon overnight. THAT is responsive. You won't waste your money here.

This add-on allows you to present content on one page without overloading the look and feel of your page. You put the needed blocks into a stack, and each of the tabs shows one stack. That means, you can not only show text, but per example text with a gallery beneath. Exactly what my customer wanted.

The themes might fit more or less to your design. If they don’t, it is not too difficult to change the outfit of the best fitting theme as needed. You should only know how to handle CSS, of course.

The support is also superb, so there is no reason not to buy this add-on. Highly recommended!