I am a true believer and promoter!!! Hunting here in the SC Lowcountry we have skeeters big enough to well you know what to turkeys!! The Thermacell really works!!
Go to
http://www.mosquitorepellent.com and buy the summer pack for refills, much cheaper than buying them in the small packs!!
I also use them down here during deer season as ours starts Aug 15. Can you imagine what the bugs are like down here at that time?