Is this flooring actually waterproof?

Yes. The SPC core is plastic-based and does not swell like laminate or hardwood, so splashes and damp basements are fine. Standing water left at seams over long periods is still worth wiping up.

Can I install it over existing tile or concrete?

It floats over most flat, sound substrates, including concrete and old tile, with the attached underlayment as the only pad. Fill dips and grind high spots first, since the thin pad won't hide them.

How does it compare with LifeProof or Shaw rigid vinyl?

It matches them on core type, 12 mil wear layer and click installation. Those brands generally offer wider planks and more consistent joints, which is where this one draws complaints.

Does it need glue or nails?

No. The click-lock edges join plank to plank and the floor floats, so no adhesive or fasteners are needed. Leave an expansion gap at walls and cover it with trim.

Is it good for bathrooms and kitchens?

Yes. The waterproof core and wear layer handle moisture and daily traffic. Use it in dry-to-damp rooms rather than in a shower pan.

What comes in the box?

Ten planks at 48 by 7.2 inches each, with the underlayment already attached. That covers roughly 24 square feet, so measure your room and add about 10 percent for cuts.