I purchased one in late spring. It "worked" for 20 days - caught two mosquitos, YES - 2! Changed the propane tank and couldn't get it restarted. It's now mid August and I am still getting hasseled by the company. It still won't start.
By the way, the return policy is only 45 days. The warranty is 18 months, I think. It's been a total pain. I get bit more while I am outside trying to start the damn thing than before I got it.