I'm a licensed builder and certified municipal home inspector. I built my own home and did all of the right things when I built it- I have interior and exterior drain tiles, waterproof exterior membrane, and two sump pumps. I have never had a leak through the walls. But just like Sanitred's website advertises, the water would seep in through cracks in the floor and particularly at the slab/wall joint. With my experience in other water-proofing products, I was skeptical, but I wanted to test it myself. So I bought the 1 qt sample kit. Purposely, I did only a mediocre job of prepping the surface - I only lightly hit the wall/floor with a wire brush and vacuum, however I made sure it was dry. I then applied Sanitred to the absolute worst spot in my basement and also painted some on a sheet of glass and poured the LRB into a solo cup. The product worked exactly as advertised. The Permaflex that was painted on the glass, came off in one clean sheet and was flexible as advertised. The LRB in the cup was exactly as advertised like a hard rubber ball. The product that was applied to the wall/floor adhered beautifully and completely stopped the problem in that section. Plus, the product adhered to the wall/floor so well that I took a pressure sprayer to it to see if it would come off - it didn't, it adhered excellently. A few months later and several heavy downpours later, the product still performed perfectly. Being encouraged for the first time in years, I applied it to the rest of the basement. Hands down this product works as advertised. Follow the installation instructions, do the proper prep, and you will be very happy with the results. Anyone that claims the product doesn't work either didn't properly prep as directed or never tried the product. The product works exactly as advertised.