I've had the Garman 800 package for about a month, and after about 450 miles love it. It takes some getting used to taking it off the bike, to recharge it, but have left it on between two 40+ mile rides over four days with no problems.

Just got back from a vacation in Florida. I really enjoyed downloading some rides locals had posted on the net, into my 800, and riding them solo. Only one wrong turn over the two weeks, and that was when I was riding a route the second time and thought I knew it, so I wasn't watching the GPS closely.