I've had this computer for 1.5 years of steady riding and love it. It isn't too large like the other computers (especially the newer CatEyes), yet it has all of the necessary features. personally, I stopped looking at the cadence function after a while (and ultimately disconnected it) as I got a good feel for my cadence.
The altimiter is the best feature. Don't worry about resetting it everyday as the pressure changes with the weather. If you're like me, then you poribably know the altitude you are at (or don't care). The primary benefit comes from the total altitude gained during the ride (which works regardless of the accuracy of your starting altitude). This morning I started at -56ft (didn't reset it), but rode a total of ~2750 feet total gain. I've compared my readings to well published routes and the altitude gained is dead-on.
FYI... for my rides I track total miles, avg. speed, avg heart rate, altitude gained, and have software that uses these to calculate calories burned and average watts using my weight/size, bike weight, etc...
This isn't as good as a power meter, but its good enough for me.