I'll update this again with an excerpt from the support ticket with LCWeb:

"I am extremely unhappy with the experience of getting this plugin working. I feel as if I've been funneled away from a known system of trust (Entavo) to your personal business site which for me is unknown where it took multiple steps and multiple codes between your site and email to create an account and activate."

For anyone else, you MUST create and activate an account in their system. Then you MUST register and activate the plugin using your site URL. Mine is a local network wordpress and is publicly unavailable. Despite that I HAD to activate the plugin using the "production" code. I don't know why staging or offline did not work. I expected "offline" to be the correct choice.

I've found this to be a confusing and frustrating process. You may not and be perfectly fine with the additional steps. But just so you know, you CANNOT activate this plugin from the code in Entavo. That code in Entavo's download area is worthless. The LCWeb system MUST be involved in getting it activated so you can use what you purchased.

Additionally, I HAD to activate the plugin to open a support ticket with LCWeb. I can't find a contact form on their website nor does it have an About page where businesses typically list a support email address.

The plugin is buggy and lots of features don't work. I messaged support and they are not helpful or friendly at all. Options that should be there aren't. You're better off using another grid. I've been using essential grid for years and never had a problem. I thought I would try something new, but it's not worth the hassle back and fourth with a support team that isn't passionate about the products they support.

The support system won't validate me to ask questions. This lacks any bulk item configurations as far as I can tell. I wish it had been more clear on how the back end would work so I wouldn't have purchased it.

I gave it 3 stars because the media grid does what it says it does, but the presentation on the sales pitch is unclear, and there are bugs with the LCWeb support system which makes support non-existent right now.

If you want to do a gallery of like 20 things individually tailored, this plugin is great, but if you have 300+ images you want to handle, this is gonna be a nightmare, and I wish that was more clear before purchase.

Sorry, it's not quick enough and complicated.

On a fresh wordpress install this plugin is great and does the job. However, I have found that using in conjunction with the Houzez theme the grid builder user interface breaks due to style conflicts. Specifically the `form-wrap` class name. I have to modify the plugin code myself to fix the UI which will break again if an automatic update is run.

It looks like the plugin author has namespaced most CSS class names, but not form-wrap. Please change this to mg_form_wrap like the other class names so the plugin does not break when being used with other themes and plugins. Then I will give 5 stars :)

Despite declared compatibility with WPBakery the addition of MediaGrid element to the page resulted in the generated page so badly damaged that none of the top browsers displays it.