Dustin.Haven't used that watch, but the Suunto Core I got as a gift is pretty sweet. The thermometer is pretty worthless as it almost always shows about 80 degrees one my warm wrist, but the other features are fairly accurate and I actually use the compass all the time. I thought it was just a neat gift idea, but I'm surprised how often I use the features.
As with any ABC watch, you need to take the unit off your person and let it sit 5-10 minutes before the thermometer will be close to accurate. Otherwise, you are just measuring the heated air coming off your wrist.
Same as you need to adjust the altimeter prior to an excursion to ensure you are getting somewhat accurate readings. You can still track elevation gains and losses without calibration, but if you want better results, you need to calibrate at a known elevation.
Instead of a Suunto, I went with a Casio Pathfinder. The idea of having the sun recharge my watch instead of a changing a battery every few months was a huge factor in my decision.