I just got some and they're as good as I imagined they'd be. If you're like me and you hate seeing unsmoked bud get sucked into your bong water or getting scooby snacks from a spoon pipe definitely consider getting some. Even if you aren't tight on weed you'll still be able to smoke more of the bowl without wasting any.
yeea i been using that shit since i got my first proper glass bong, it came as a bonus with it, but i got very used to it.