“I've been using these for several months. More convenient and cost-effective alternative to Juul -- they hold over 2x the amount of liquid, and can be refilled several times easily (Juul pods actually can be refilled too, but it's a much more annoying process and you can't do it as many times.) Rarely I have had issues with leakage, but no more often than with Juul pods. Highly recommend overall, only deducting 1 star for occasional leakage.”