Hempzilla CBD is excellent! High quality, excellent results! The disposable pens, however, have technical issues. All three of the ones I ordered had male-functioning batteries, so a waste of money. Also, unfortunately, Hempzilla uses USPS for shipping. I made the mistake of paying extra for fast shipping. It took over a week for delivery. I live in Brooklyn, Hempzilla ships from New Jersey! I realize that this is not the fault of Hempzilla, but the ineptness of USPS. But I would be happy to pay for extra shipping if Hempzilla used a reliable, competent carrier such as FedEx or UPS! Better yet, why is Hempzilla not available in retail stores? That would be even better!