Has anyone replace floor with Coretec luxury vinyl flooring?

I have a bid to replace my carpet with Coretec flooring. Its a snap together flooring with a cork backing for added insulation/sound management--they say. He also said that water could penetrate where it snaps together, but wouldn't be easy. He suggested a cotton rug around kitchen, shower, etc.

I'm just concerned about the water issue, especially around the shower as the door drips on the floor whenever we shower.

If you have used this product or know someone who has I'd appreciate their experiences. It's pretty expensive.