Pro?s: you don't need to carry a radio and a gps with Onyx capability, lots of mounting options, some cool measuring applications, and all the other gps advantages.
Cons: price, weight, radio isn't better than a $75 Motorola talk-about, battery specific, battery drain even with power saving mode.
If I were to do it again, I think I would pick up a cheaper used Garmin with Oynx capatability and stick with a Talkabout radio. You could probably do this 2-3 times for the same price as one New Rino. I had problems with the batteries overheating and/or not charging. Garmin took care of it under warranty but still....
