Bad support. The author has answered me two months after my question.

good, earned on Porto themes

Plugin is very nice but after last woocommerce update my variations dissapear. What is problem?

Promising product and usable, but very very buggy and the support is very very poor. There is absolutely no effort to understand the issue and find a resolution. Author keeps throwing replies unrelated to the problem despite me spending time explaining the situation in detail.

Paid for support without getting any!!

Terrible!

Terrible Support. Do yourself a favor. Find something else.

The plugin basically had a lot of problems. Every time there was a problem, the answer was "It will be fixed in the next upgrade.

But every time there was an upgrade, while it might have fixed the original problem, it also broke the site again in some new way. I learned to always have a backup so that I could at least go back to what was. When I asked for support, it took weeks to get a response - if ever. And if/when I did get a response, it usually didn't fix anything.

After months of agony with IVPA - always hoping things would get better - and always wrong - we replaced this plugin with a plugin from a different company.

Based on the extreme lack of support and the basic fact that the product simply was not useable, I asked for a refund. That was 2 months ago. As you might imagine, I haven't had a response.

Save yourself the time and agony.

lots of bugs.
Whenever user turned on ajax add to cart feature; its adding items to the cart even without selecting the desired t-shirt size.

Bought this module to test if it would suit the website I am currently working on, as the description was not clear enough to me. After downloading the module I tested on localhost server to see exactly what features it provides and unfortunately it was not suitable. I then contacted the developer to check if it is possible to receive a refund. Week later I received an email saying no and if I disagree advice to raise a dispute with Envato. The module does not cost a fortune that would make me broke, nor it will make the developer rich, therefore the level of customer service was highly disappointing to me. You should probably consider this before purchasing.