I have these as a tub/shower surround, replacing tile. Much easier to clean. Probably not a lot cheaper than using extra large tiles.

In our new build, I used the panels that look like white subway tile with white grout. I did it for ease of maintenance. I have been very pleased. Boy! does it look clean! The only no-no is anything with grit, including soft-scrub type cleaners. It will scratch the surface.

It may have been the tiniest bit cheaper, but not substantially.