I've never used the suits myself and have no plans to get one but I do know several people that swear by them.

After the first few years of hunting I realized how important scent was to a deer and I was winded often. Since then I do everything I can to go into the woods scent free. First, I wash all my hunting clothes including underwear, socks, hats, gloves and even the towel and wash cloth for my shower in scent free laundry detergent and keep them in a sealed container. I shower before going out with scent free soap and use speed stick unscented deoderant on arm pits, crotch, and feet as these are the most odor prone areas. I scrub my boots with s/f laundry detergent and put a little baking soda under the footbed. That's about as scent free as you can get.

Now for the wind, I don't worry about which direction the wind is blowing because it constantly changes direction. Just this morning as first light broke the wind was out of the east. Thirty minutes later it was out of the south. I've had very few day's when the wind blew the same direction for over an hour, much less all day.

Instead of wind I try to use thermals. In the morning I like to hunt near the top of the ridge so the thermals carry scent up. In the afternoon I try to hunt in a low area because the air usually settles which carrys scent downward.

It's been 4 years since a deer has winded me. Last year during bow season I had 4 bucks at my stand within 30 yards. One came less than 6 feet from the tree I was in and never knew I was in the world.