A vinyl plank floor can be extremely durable...when it is 100% vinyl. If the vinyl is mounted on fibreboard, plywood, limestone dust, etc. it runs the risk of delaminating. These vinyl planks are also hydrophobic...they don't like water. They will work better than your laminate...but if water gets between the boards and hits the middle layer...you will have delamination.

If the vinyl plank is in direct sunlight...it will delaminate. Our company tried this flooring as a production run and quickly found out that it delaminates. The problem is there is very little in the way of "eco friendly" adhesives that will allow the vinyl top layer to grab wood/fibreboard/limestone dust. These adhesives have to be "air quality friendly" which means they are sensitive to water and heat.

What I know from Germany is the way around this is a glue down vinyl plank. The plank must be 100% vinyl (vinyl wear layer fused to a vinyl structure underneath) to be water proof. The more rigid the vinyl plank the less likely it is to warp in direct sunlight. The thickness I would work with (if I had to use vinyl planks) = 8mm (5/16") or thicker. These should cost $5-$7 per square foot.

Our vinly floors (produced with fibreboard and eco-friendly adhesives) delaminated inside of 3 years. We have several claims against our warranty because of this. We ended up loosing every penny on this type of floor. This is how I know about the "luxury vinyl" flooring planks.

Do your homework, send photos of the samples you have taken home. If it is ANYTHING other than vinyl on vinyl (and less than 8mm thick) you may want to look at engineered hardwood.