I think with most stain removers, you have to attack the stain pretty much as soon as it happens, otherwise there is little chance of removing it completely. This one does work to a degree but doesn’t completely remove a set in stain.

I have only used this once while staying at my inlaws but I found it worked well and got a nice big gravy stain out which surprised me

I have this for spot stains on shirts pants etc. Just spray on 10 mins before wash and it comes straight out in the wash.