Chocolate is good.
Marc, why don't you just scroll through them with an image open and see how they effect it? That is the best way to get familiar and see if there will be any use for specific destinations you have in mind for various work. You will see the changes as you scroll through them. The grain will only be visible when viewing at 100% I believe. If nothing blows your skirt up then you can just turn filmpack off, select your camera body and go on with it.
I will be looking forward to any comparison reviews with DXO and other raw converters. I have had years with ACR and DPP now and don't even think about them after using DXO for one off images which is how I work. They have taken control to a whole new level. I haven't used any of the other raw converters though.