Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nice pump; could have better documentation

This pump is light, compact, and easy to mount. It looks great on my silver Gary Fisher.The documentation is sparse, so if you're not comfortable with gadgets, you may want to look elsewhere. There's nothing that explains how one should attach the pump to the tire valve except for a vague diagram.I agree with the previous reviewer that the guage appears to measure in units of 10psi. It "hops" forward or backward in 10psi increments rather than moving 1psi at a time. Not a huge deal to me. But that cost it a star.Pumping is easy and efficient.