Vapolution here! It's the first I've had or tried and I love it. Great company in Chico, CA and very respondant and cool fellas. I also combed the net and head shops and heard lots of BS, but IMO the Vapolution sounded like a good value. I have not been disappointed as I use less mj than before and a clean high. No more coughing and oyster bla blah. The Vapolution does not have a digital thermo, but like someone said above, it's easy to figure out where it's at. I've since tried a Vaporwarez and it was cool, but for flavor, the Vapolution kicks ass. I have a hard time putting it out of mind - it seems to be calling my name. I LOVE vaping. There's my 4.20 cents worth.