I bought a Scent-Lok suit 2 years ago.Jacket,pants and hood cost about 230.00.I have not noticed a difference.I've always tried to be as scent free as possable anyway and always use the wind to my advantage.If I had it to do over again I would NOT have bought the suit.
I'm not saying they don't work but imo they are not worth the money.I would have been better off buying another bow,arrows,tree stand etc:
I've also have tried certain spray bottles that say they cover your scent.Maybe I used too much but the deer were spooked and knew something was wrong.I watched them vacate the area while I was 20' up a tree.