I got upsold on a one-gram CO2 cartridge, a "great deal that lasts so long" I was told. Except, it stopped working about halfway through it's life cycle. Worse yet, when I attempted to recoup at least some of my purchase (maybe a half-gram cartridge?) one of the employees demurred, and the manager actually laughed at me. Worst experience and the worst $75 ($25 on a battery w/ a case) I've spent at a dispensary yet. Do yourself a favor and spend your money elsewhere.