Mike, interesting post.... shouldn't you wait till Friday afternoon to start a riot though?

James, if one protector was "best" that means all the others are not best and nobody would buy them

What's best is what works for you. Any decent protector will do what it says on the tin
when applied correctly. If anyone has done any conclusive, reliable, unbiased side-by-side tests on different brands, I haven't heard about it and I'm sure the rest of us would like to know that too!
(maybe an idea?)
I'm by no means an expert on the scientific side of protectors but I think they basically fall into two categories: silicone-based and fluorocarbon-based. Silicone is older technology and has its problems, fluorocarbon tends to be the norm now.
One or two have antibacterial additives in them to give an extra benefit to make the sale more attractive. I'm not very familiar with promite but i think that has something to kill dust mites too.
You need to protect your own carpets & upholstery to
really believe in the product (and then have a few accidents!). When you blot spills up with a tissue and they vanish right before your eyes, suddenly you have 100% conviction when selling it to customers
