I use scentlok exclusively and believe whole heartedly in this product. It is not a cure all, but it does work. There are alot of other factors involved in scent control than just the clothing you wear. Equipment, where you walk with your boots, how often and with what you wash yourself as well as your other clothing. Smoking, a thermos of coffee, or food you bring for a snack all put off scent that may or may not alert the deer to your presance depending upon how nervous the deer are, and how well "educated" they have become.
I have become a scent control freak the last couple years. Even then I always play the wind to my advantage, or at least I try my best to. I have been able to fool the deer alot more now even when they come in from down wind. Yes every now and then I do get busted. Seems like they can still pick up where I've walked but don't seem to pick up my person, or where I am as well as they did before I started using this product. They also don't seem to spook as bad when they do pick up my scent. Now they usaully just walk away. Before they would aften snort the alarm when they smelled me.
These products are relatively new to the market so I would expect to see advancements in the future. Already there have been many improvements made since they were first introduced.
Merry Christmas everyone

The spirit of the woods is like an old good friend