I am an older rider getting back into cycling after 30+ years. When I bought my new road bike in April, I bought a host of accessories at the same time, one of which was a cycling computer. I asked about cadence, but the salesman dissuaded me from buying one with that feature. He claimed that a beginner such as myself didn't need that level of functionality, and that computers with cadence are tricky to setup because they have two sending units (one for the front wheel, another for the crank to measure the cadence).

So far, I am fairly happy with the computer I bought (a Bontrager 5W). It has just about every function other than cadence. It is wireless, which I like a lot. Its only downside is that it is somewhat tricky to reset the trip statistics: One has to depress the two buttons simultaneously for two seconds. It turns out that the "sweet spot" where these buttons activate the switch is tiny; I found by trial and error that I have to first press the two buttons near their outside edge and then rock the buttons towards their inside edge until I hit the sweet spot. It is a little bit annoying, but now that I've learned the "secret," I can do it every time.