Summary: I've owned this model for a few months. Previously I used Cat Eye's wired bike computer. I looked at some wireless models but my search ended when I found this. It's a very good entry level GPS enabled bike computer. It was a definite upgrade from my previous wired computer. The only feature I was missing was the cadence but found I no longer needed this plus I lost the magnet so I haven't used the cadence in quite a while. I didn't miss it.
Summary: Ive been using this computer about 8 months. A real nice value compared to the high price GPS out there that are 3x or 4x as much. Lacks features that a very serious rider might be interested in. However i ride a lot and long rides and its great for me. Easy to use and has many features i havent even bothered to check out yet. Love how it tracks all altitude, speed, distance, calories and i keep track of my fitness by uploading it to strava.
Summary: It's great to be able to check speed and distance without having a spoke magnet and a fork mounted sensor. The game like thing where you're trying to beat the phantom biker (whose speed is constant) is a surprisingly effective motivator. What's less great is being chained to your routes (wish it had the waypoint capabilities of the Foretrex series). As long as you follow an intended route to the letter with only short breaks, no problems.
Summary: Specialized unit with spoke pickup never was particularly accurate. The Garmin 200 is very easy to set up, attach to the bike and hit the road with gps accuracy. No frills, cost effective, easy upload to the garminconnect website for viewing and tracking route, elevation, etc. I like it.