hi mate, i did a four bedroom house the other day, fairly straight forward, a few nasty stains which were dealt with, but one was a very large printer ink stain (on a nice cream wool carpet), i was told by the client (it was an eot) not to worry as that carpet was being replaced due to the stain, which to me was a challenge, so i went to work with alltec specialist stain remover, and a bit of alcho spot, worked at it for a while, tamping, and working in with a spatula, now, it wasnt 100% result, but lets just say 95% sorted, a very happy client, and i personally think a very good product........