I have used it many times over the years as we offer it as a service as part of my bodyshop business, we do all sorts of trim stuff and wollies in 10 mins from where i live.
Its ok for a quick freshen up but not what id call long lasting at all, would start to wear in high traffic areas within a year if not less, and its not very waterproof even if you use their sealing paste. Dark colours will last better than light ones obviously.
The game has moved on from there sort of stuff in recent years, nearly all trim refurbishers now use paint that you spray on with a small gun (devilbiss sri or similar) and the latest waterbase stuff is very hardwearing, we have seen demo's of it sprayed on a sample bit of leather and then literally kicked and scrubbed around on the floor and it dosent come off at all.