I have the Legend and it works just fine. You will loose signal in a heavy canopy. I think that's pretty much true with any of them. You just have to find a hole now and then. You can buy topo software for the Legend and upload maps. Depending on you computer you may need to buy a special cable. I cracked my glass on the face of my Legend, but it still works. I'd be afraid to take it out in the rain like that. I bought a new pair ofGarmin Rhinos at Xmas time with my brother. It's the nuts. More expensive but with a radio and all sorts of neat features. I do love it. With the Legend when you uploaded topo stuff you couldn't revert back to your base map and could run out of room for more uploads. With the Rhino I have half of NY state on it I guess with a little room left. I know if I go to Ohio or some place like that I can go ahead and upload maps from there. It's a lot more than the Legend, but it does a whole lot more. You can keep track of where your friends on the same frequency are, go to their location or last known location at the push of a button. It's so cool. I'm going to get my Legend fixed if they'll do it, but I'm a Rhino man now. LOL