This is the only valve I've ever used that actually holds pressure after it's pierced the C02 cylinder. I've used the partial pressure after a couple of months of initial use. I use it and several friends use them as well, all have had the same good luck with these valves.
It works as described. I had a flat yesterday and busted out the Shiny Object. I screwed in a CO2 and inflated the tire without the internals freezing up and with super control over the CO2 flow into the tire. There also a pressure relief hole so once you back out the cartridge it doesn't want to take off like a rocket. It slowly and safely bleeds off the excess CO2. Worth every penny.
bought this in Jan 2015 - Used 3 times. First use - worked as advertised. Second use - had difficulty with turn knob and burned 2 co2 cartridges to inflate tire. rd use - knob kept turning and never disbursed CO2 - never got my tire inflated. I went through another 2 cartridges and still had a mostly flat tire. Luckly a buddy had another inflator which worked by twisting the cartridge to engage rather than a knob which just spun (open or closed).
Not unlike other all metal inflators this works good but gets so cold that I couldn't turn it off or get it off my tire even with gloves on
I bought this because my previous inflator did not work for me. I normally have used a frame pump for my tubed tires, for years and years. My newest bike, I made the transition to tubeless tires. Also, I didnt feel a frame pump was proper for use on this bike, so I switched to CO2. I threw an o,d inflator that Id had for years into my seatbag. First time I needed it, it didnt work. I ordered the Shiny Object head as soon as I got home, mostly because of the reviews I read on BTD, and they had a great sale price. Ive only needed to use it once so far, but it was so easy and worked perfectly. I am very happy with this purchase. Thanks BTD and PDW.
I haven't used it and hope I don't have to. The real test will be if it works when I need it or will it be unusable because I didn't use it and now the knob won't turn cuz it's gummed up with mystery funk.