Summary: The GPS works very well overall. I like the functionality. The two things that I wish were better were the battery life and the radio function. The radio seems to cut out when you are a half mile or more away from the other user. Granted, all my use is within the woods so that may be affecting the signal also.
Summary: purchased rino 120 to stay in touch with others when snowmobiling and hunting as well as map where i had been. Having some difficulty downloading new maps but that could be opperator error. Mine didn't come with acord or manual but these items are available online. Have not used this unit very much yet, but I am pleased with it so far. Overall I think it is a good unit for the money.
Summary: The unit is a convenient size and has quite a few usable functions for the price. The radio range isn't quite as good as the more expensive units, but is more than adequate for most uses. The GPS functions well except under heavy cover or in buildings. I absolutely love the peer to peer function, it makes finding your partners easy and makes it easy for them to locate you as well - especially useful if your injured or in trouble.
Summary: this has been an invaluable tool. i use it for hunting, camping, day trips, road trips, and geocaching. it is so user friendly my 7yr old can use it to find "treasures" (geocaches). the radio has good range as long as it is line of sight. there are about 20 people in our hunting family that use these, all but one has had no problems, the one was a factory lcd problem, outdoor store replaced for free. i will hand down this one and get new color screen for myself.
Summary: still working with it; i have a garmin oregon 450t which i mainly use; i got the rino to use with its radio; when i hike with other hikers, so we can stay in touch; radio works ok so far; i prefer the oregon touch screen over the rino's joy stick; i guress it is a matter of personal preference, will know better in the spring when i get out on trail again