Summary: I bought this to use on my bike for an up coming trip but before I was able to, I used the Map Source and plotted a custom route fron North Carolina to mid NY state, I did find that the lack of directions that came with the unit was a detriment and if you are not computer literate downloading the actual use instructions is 60 plus pages but not bad if you can adjust your printing.
Summary: In the market for motorcycle GPS units, choices are limited, the Zumo 220 is the basic unit on the market, not inexpensive compared to an automotive unit, then again, this unit is weather resistant and includes mounting and wiring hardware. The mounting hardware is from RAM, this allows for plenty of flexibility in mounting; you can get additional hardware from RAM to augment the included hardware.
Summary: I like the unit so far. It was easy to set-up and the display is easy to read. I haven't taken the time to play with other functions like planning my on trip. I did get a bluetooth from Walmart and I can hear fine over a loud Harley motor. It is a one cord hook-up to get the unit pluged directly into the battery for longer use good thinking Garmin.
Summary: I just bought a Zumo 220 and will be sending it back. The unit itself works wonderfully and the pricepoint is great, but the bluetooth support has been crippled because it does not support A2DP like the 660 and 665. I'm not certain how well the 550 supports bluetooth, but I do not think it supports A2DP either, at least its not listed as such on the Garmin web page like the 660 and 665 are.
Summary: I purchased the Zumo 220 for my KLR 650. I do quite a bit of off-roading and like to do custom routes with my own waypoints. Garmin lists this model as having the ability to save 10 routes and 500 waypoints. What they don't tell you is the maximum number of waypoints for each route is 200. That doesn't work for me. For someone who doesn't do a lot of custom routes, this is a great device.
Summary: Due to their ease of use, GPS units are finally making the jump from Geek Badge to usable, which is the selling point for the Zumo 220. Installed on my Triumph motorcycle it has proven it's worth several times by extricating me from my "Gee, I wonder where this road goes" habit. Even with gloves, it is easy to toggle thru the menu. At speed the audio is useless unless it's Bluetoothed, but that's a nit as I depend upon the visual. Perfect? No.
Summary: Excellent GPS. The mount works well and is easy to install. Althought the GPS is advertised as being compatible with gloved hands, I had some problems with it at times (the only reason I would not go 5 stars). The bluetooth connection worked very well the first time I tried it with my Scala Rider bluetooth commutication device. The mount supplied for use in the car is excellent. All hardware and support pieces are of very good quality and appear to be up to the task.