It's funny. I hear comments like yours often. The guys I work with get sick of hearing me every time I rattle off a few dozen nails while reciting "These guns suck, they're always jamming, fuel cells always bad, battery is always dead, $400 nail starter, blah, blah, blah,,,!", when the truth of the matter is, they perform as well or better than the air guns I've used.We have 3 paslode impulse guns. 2 framers, 1 16 gauge, they rarely work when we need them to, even after sending them to be serviced multiple times, buying new batteries, fresh gas charges, and paslode nails exclusively. Good idea in theory, now if they only worked as well as our air guns (usually) do.
I've run literally thousands of nails through each one of my Impulse guns. While they can be temperamental in sub-freezing temps, I've never had any worse performance problems with Impulse than I have with air. If anything, the opposite is true.