I totally love this pen for the subtle look and very little odor in vapor. great for all situations when needing to be discrete. Nice clean buzz. Can get expensive if you use as only form of smoking.
I wasn't sure I'd like a buttonless pen... but this is really great. It really does have the perfect puff.
Works like a dream with the treemo cartridges. Not sure how long it's gonna last, but I think twenty bucks is reasonable for a battery and charger so I'll likely buy again in the future.