The pen itself is very nice. Good design, machining etc. I just wish they would include some documentation. Charged it up and it didn't work, because apparently you have to press the button 5 times quickly to activate. Had to wait all weekend to use it, until I called in and got this info. Would also be nice to have best practices, such as optimal fill level, cleaning etc. Drew here at Kings Pipes said they are working on a blog post or such with this info. Yes, please make a writeup, and also include it with each shipment of Yocan Evolve. People shouldn't have to guess there may be a blog entry with helpful info. Glancing at the other reviews, I see I'm not the only one … Bad on the distributor.