Do you notice any improvement or change in driving response after resetting, aside form clearing problem codes?
Not a thing in any car I've ever reset it in.
Also, in some cars, you can reset it by unhooking the battery for a period of time. I woul;dn't try that with the Insight though - it's a different animal. Before I got the Bluetooth ODBII reader, I would unhook the battery in my old Civic to clear the O2 sensor code after I screwed up and left it disconnected after an exhaust repair. Google is a wonderful thing. After that, I broke down and bought a cheap reader. It's nice to know what one is dealing with before visiting a repair shop.