Oh, I do like them, and I’ve bought plenty of them. Great lights, for the price, but it’s primarily the Nichia 219 that makes them great lights. The quality is barely acceptable, IMO. Threads are way too fine, and some lights even came already cross-threaded as a result. They are not very drop-proof. Even dropping on a carpet, I’ve had the switch push in and stop working. It’s easy enough to fix, but the press-fit is too easily slipped when dropped. They are not waterproof, so I’m not sure you can wash them under a faucet if you get them dirty. Finally, while the LED is great, the range of tints you get is far too wide (I have a really green one, something I’ve never seen on another Nichia 219 light).
For those reasons, I would not carry one as an EDC or depend on it as a primary light. But, I stash them around the house, and they make perfect lights for brief use when you need a light that’s handy and close by. Also, since they’re so inexpensive, I don’t really care if I break one or lose one.