I can tell you they're a great sponsor too, and one I've promoted since they launched their Hogtied site back in the 90s.
But I'd suggest you don't push their Pissing site right now since it's not going to be updated anymore. (
post about that) They have several other good sites to promote. Just take Howling Wulf's advice to have more than one sponsor no matter what you do.
And I'll go ahead and mention that it's very important to really understand whatever fetishes, kinks and perversions you want to promote or it won't matter very much how good the sponsor is. If you don't have personal experience with them, then make sure you read, study and talk with others who do or you can waste a lot of time trying to push things in the wrong directions.