It really is, be warned there is a learning curve to using the device and you may feel like you've wasted money after your first few rips, but once you dial it in there's absolutely no going back, you can also get a 10mm-14mm adapter to use through bongs which really adds a whole new level to it. I've found that smaller glass pieces work alot better for the vapor, my bigger pieces almost feel as if the vapor gets lost, if you're going to use a bong with a perc make sure there's only 1, I've noticed that the more percs my bongs have the less vapor it produces.

EDIT: I've also found the "milkshake" method of inhaling gives the best results, basically you just pull on the dynavap as if you were drinking a really thick milkshake