Not only do I use them,I raise them and sell them.I have 16 dragons and 5 panthers of various regions.I have done away with crickets except as a monthly "treat?"Before I take them in the house,I rip the legs off and hand feed my critters.I was tired of having cricks running around my house,chirping at 3am,smelling, and just being down right nasty insects.also,when i would buy boxes of them,by the time they got to me they were starving and if you put them right in with any animal,babyor adult the first thing they do is start nibbling on what ever is closest especiaolly eyes or any soft tissue. THERE SEEMS TO BE SOME CONTROVERSY ABOUT HORNWORMS SAFTY,i use them almost exclusivly!!AND MY ANIMALS ARE HAPPY,HEALTHY,AND WILL EAT LITTLE ELSE BESIDES VEGGIES AND SILKWORMS.aNOTHER POINT IS PEOPLE SAY HWs cost to much,well an adult hw weighs btwn 10-14 grms.thats equl to 2 dz. adult cricks . This is not a sales pitch,i have plenty of bus.,but check out my ad on kingsnk and do the math,HORNWORMS ARE THE BEST FEEDER GOING! THANKS