I picked one off Amazon Warehouse that was in "like new" condition for 15$ and tax, so I can't really complain about the price. I'd describe this pump as being "adequate." Like if it was a student taking a general intro class that all students have to take, it'd be in solid C/C+ range. Why the "+?" Well, it does one thing really well. I think because of the design and the barrel size/shape, you get a lot of bang for the buck; maybe 5-10 psi per downward pump. Then, the usefulness really tapers off and as you get into the higher end of the useful range, it becomes increasingly more difficult to use. Kind of like how an average student might show promise in the first few weeks of class, then around the final 1/3 of the course, really fizzles out. I'll give some examples: 1) On my motorcycles which take a "normal" Schrader valve, the recommended tire pressure ranges between, say, 28 and 34. In such a low range, within about 2 - 3 pumps, I was in the recommended range, but because of how the gauge on the pump exceeds the actual air pressure at first (kind of like when you first step on a scale, your initial downward force is over reported because of the physical motion of stepping), I had to slowly through trial and error tinker with how best to get the right amount of air in the tires by releasing the pump head valve, then re-engaging it until I was in the right range. To be fair, if the actual pressure is 26 vs 28 vs 30, it's not so incredibly critical. 2) I have a cyclocross bike that currently runs a 700x28 Armadillo Elite. I bought this pump in part because the upper range is advertised to be 100 pounds and a combination of the stiff frame I have and where I typically ride makes me usually keep my tire pressure in this application between 60 and 80 pounds. Some of you road bike snobs or Freds can't comprehend this type of witch craft...but it actually works. From completely deflated, each pump for the Presta valve tubes that go inside my tires was a 1 to 10 pounds ratio at first. 5 pumps got me to 50 pounds, 6 to 60. And then when I got to the 7th pump, it got very difficult, and finally it tapped out at around 70 pounds. Compare this to any floor pump at a cycling shop that can easily go to 105-110 without any real issues, and you see kind of where this particular pump falls short. So, in a nutshell. - If you can get one in "Like New" condition for 15 bucks do it. For the price, it's really not bad. - If you just need this for casual use like pumping up your kids' bmx bike tires, checking your car or motorcycle tire pressure once in awhile and having a little patience to find the sweet spot of how much to pump vs. how much air is actually going into your tire vs. what the gauge on the pump is actually saying, not a bad deal either. - If you need this for high pressure Presta applications, that's a solid "no, don't do it" from me. If it's anything like my experience, you'll probably tap out around 70 or 75 pounds, get frustrated, and then wonder out loud to no one in particular why a $15 pump doesn't work the same way as say, an $80 dollar pump.
