Three and a half years I've used mined every night and on a few other occasions too! Love it! I put a piece of blue tape over the LED, damn thing was BRIGHT lol!
I was playing Red Dead and GTA last night with my Vet friend that I gave a couple oz of the GG#4 while vaping the same GG#4 with the HerbalAire. I was just plain dying laughing at both of our antics.
edit........I absolutly love my HerbalAire! No buyer remorse whatsoever!