I just bought this; haven't needed to use it yet on the road/trail. First things first: as of April 2015 the Y-12 and Y-16 have their photos reversed on Amazon. Everything else (specs, title, price) are accurate. I ordered the Y-16 (even though it had the Y-12 photo) and got the Y-16. So basically ignore the photo for ordering! (Go to crankbrothers.com for full photos of each.)My first instinct when opening was the weight. It's a little heavy...or so it seemed. Just for kicks, I pulled out the scale. It weighed 257 g and is labeled at 260 g, so a little lighter than listed. But I weighed my little saddle bag that has a standard (Lezyne) multi tool, tube, little patch kit, two CO2 cartridges, cartridge inflator and in came in 15 g LESS than the Y-16 and a tube, patch kit, 2 CO2 cartridges. So in other words, overall this is a little bit heavier, even though there's no saddle bag since the stuff would go in your pockets. This is due to the black plastic frame of the tool and the little compartments, plus the heavier Y-tools. Those weight penalties are more than the saddle bag. But only a little, so I like it! I'd rather add a teeny bit more weight to be able to use real Y-tools instead of a little standard multi tool!I used the Y- hex wrenches at home as a test. No problems there. The steel quality isn't top-notch, but this isn't for everyday use. It'll last a lifetime for saddle height changes, etc. every couple months - which is the intended use for a pocket tool. The little bits that fit in the container are great; held in by magnet on the Y-tool. My only long term concern is here: those bits are held into that container by foam so they don't rattle. By taking that foam out to access the bits regularly, perhaps the foam will no longer stay in place? Time will tell. But this will not only lead to rattling, which would drive me crazy, but also possibly to the bits falling out. I don't anticipate that problem, but I see it as a possibility over the course of a year or two of use.Again, I haven't had to use it in a real situation yet. But as long as the inflator works, it'll be worth the 5 stars I'm giving it. (The chain breaker seems slightly poor quality, the pin in particular. But as long as it works once or twice in emergencies, that's all that matters...and I hopefully will never have to find out!) I like the shape; it fits in a jersey pocket easily. Plus the ingenuity makes it a fun tool!