Due to leg and back surgeries and subsequent loss of job necessitating a career change I have been unable to ride until about 2 months ago. My specialized computer with cadence went out on my 3-4 ride. So I took the plung and got the garmin edge 510. Pick it up tomorrow. While not a lot of miles by most standards I was able to bust out a nice rolling hills 22 mile ride Saturday and followed up with a 14 mile large climb ride Sunday. First time my son ever rode with me. It was nice. Good luck on your computer choice.