Done a couple of post on this. It works very well in conjunction with the g1000 wax. I usually give the item (i have so many) a decent wax with home made g1000 first and hairdrier it in, then give the item a good spray of the nikwax and leave it to dry. it does have quite a strong smell, but soon leaves once aired or worn. My singi jacket is waterproof in all but the heaviest rain now. It does wash out pretty easily though, so for trousers, i only treat them when i know i'm going out for a while, ie camping etc.