I've been supplying 10mm Plushwalk for a few months, which I buy from Wilsons Underlays. Positives: 1/ Unbelievably good product for the money. (Nothing else I've seen can compete.) 2/ Fantastic underfoot. I recon it feels as good (even probably better) than Cloud 9 Cirrus. 3/ Even used it on a double stick without problems, though it is not recommended for this. 4/ The black backing to the floor is supposed to be waterproof. Negatives: 1/ It is a swine to cut due to the backings. If your blade is not razor sharp it stretches and tears. Adds to the fitting time. 2/ I am led to believe it is made in China, though this does not bother me. Hope this helps. We retail 10mm at £5.99.