Summary: Connections may be temperamental at times (GPS) due to connector used. Garmin needs to update their Software / Firmware as unit sometimes send you off the current road you are on only to return to it. There are also a few other minor issues, but over all itâ€™s a versatile and easy to use unit.
Wish I keep my 550 Zumo. The 660 a big disappointment
E. Klimas, Amazon
14 September 2015
Summary: I've had this Zumo for 2000 miles and not at all satisfied with it. The first problem is you can not read what's on the screen when the sun is shining on it, very washed out. I got this to replace the 550 Zumo I had.
Summary: This device met all my expectations - except for music playback through the Bluetooth connection to my ScalaRider G9x. Sounds like the signal is being chopped. As a result, I went back to playing my MP3s through my motorcycle Bluetooth connection (Triumph Trophy SE).
Disappointing for motorcycling complex multi-stop routes
2 September 2015
Summary: This Garmin for motorcycling was disappointing considering the price and that it was supposed to be motorcycle specific. I returned it as impractical and unusable, mostly because of two key things (1) I didn't find the screen to be bright or big enough to be used on the motorcycle in bright light;...
Summary: The problem with this item is this came with nothing but the 660. I had to go to Garmin to get all of the extras that come with this device if you buy from a regular dealer. Was disappointed in taking the time to go to Garmin and they were great. They send all items i needed.
Excerpt: The 665 appears solidly built, intuitive easy to connect (I used the car adaptor on my Yamaha FJR1300) and accurate. Works as good as any GPS and a better image in sunlight. The only disappointing thing is the XM reception.
Have a Zumo 550 with an XM radio? Read this before you order.
17 June 2015
Summary: Purchased this unit to replace my Zumo 550. The 660 provides more on screen information and all the controls but the power button are now incorporated into the touch screen display, unlike my old 550 which had rubber buttons that fell off and can not be replaced making it vulnerable to water...
The good news is the 660 works with my Route 66 ...
C. Kelley, Amazon
15 June 2015
Summary: I purchased the 660LM as it was the only one that would accept custom turn-by-turn instructions for Route 66 by River Pilot tours. I already had the 390 Zumo. The good news is the 660 works with my Route 66 download, the bad news is the 660 screen is not as bright as the 390 in the sunlight (it's...
Not the most advanced navigator but probably OK for a casual user.
Jim Clement, Amazon
11 June 2015
Summary: While having a waterproof navigation system is indeed an advantage on a motorcycle, this system does not appear to provide the level of information and functionality delivered by my Garmin 2597 LMT.