I like my Mavic Wintech. I think the design is cool because the sensor is built into the front skewer. I wish the computer unit was a little smaller, though. It has a cadence option but I didn't get that. I think a cadence feature is good to have if you've never had one before, but once you develop a feel for what's too fast or too slow, I don't know if it's all that important to have a computer to monitor it.

HR monitor is important if you want quantifiable data about your training effort.