Hi Tom, welcome.
I agree with Joe. Here’s a link that I found on the web: http://www.dixsystems.com/
I see a few misleading things about this product in the video. First, they are strongly emphasizing the lack of seams that they have and how good that is. While I agree that fewer seams are better, lots of showers don’t have any seams, except along the sides of the curb. And guess what?....dix systems require a seam at the curb
, one of the more problematic areas that cause failures.
Second, they are implying that somehow using this will open the door to new design possibilities with tile sizes or types. That I don’t get.
A traditional mud pan and liner has no limitations on the type or size of tiles that can be used. If you want to get down to limitations, you are more limited by the 7 specific sizes of pan liners they offer, or waiting for a special size to be made. Plus they say their size can vary up to +/-3/16". That could be very frustrating waiting for a liner to arrive and have to mess with making it fit.
Last, they recommend installing metal lath in the mud bed. I don’t like that. That can be a recipe for rust to show through the grout in years to come.
The real benefit I see is how tough the liner is and is less prone to damage. But that isn't enough to overcome the additional costs and size limitations I'd encounter.