Actually, I just bought another Cateye to replace a Sigma on my "B-bike". For some time I've had a Cateye RD420DW on my "A-bike". I like it because, first, it's wireless, and second, because all you do is "push and click." That is, there's no button, the whole body of the computer is a simple rocker. Press down, next screen, press again, next screen. Cycles through 8 screens. Simple as can be, great design. Also has cadence.

Sigma just bummed me out because the spoke magnet broke and went I went to get a fix, I was somewhat irked that it was going to be what I considered "fairly expensive" for a trivial plastic part plus shipping. Pullllease... it shouldn't be 25% of the cost of full replacement. bye bye. Just couldn't engineer a good hack around remounting that magnet.

Bought a Cateye MC200W to replace it. Didn't care about cadence this time (pretty much know it), glad to pickup easy backlight access (B-bike is night bike) and a seperate stopwatch function (for certain segments). Again, I think the push-click on the body is pretty user friendly. The Sigma had 4 buttons, bit too much, kept wandering into setup mode and the like.