I have the standard, original Engage on the electrically powered tank ring on my 2008. That is the same one as mferriter directly above. I agree with most of the comments above on the bag and the map pocket. The curved shape of the Engage bag follows the FJR tank contours reasonably well, and looks good.
1. Take note if you have a Helibars triple clamp. This moves the handlebars rearwards. I have the bag mounted as far back relative to the tank ring as is possible, and even so, there will be interference at full left and full right steering lock. This causes the horn to beep or the starter button to engage, respectively, if I'm not careful. This is only a practical issue when trying to park the bike, as otherwise I cannot imagine approaching full left or right lock when riding.
2. I also own the original Daypack bag, which is more rectangular in shape. The Daypack is smaller than the Engage, but its shape is more usable, frankly, than the original Engage bag for 2 holding water bottles, glasses, small items. If the Daypack was 25% larger, I'd use that one all the time.
3. The electrified tank ring option is handy for keeping small electronics charging or powered inside the bag and works quite well. The ring is only powered when the bag is snapped on to it. As it turns out, I don't really use this feature as much as I thought I would, since my Zumo 550 is hardwired and my Droid Bionic smartphone (in the excellent Ram X-mount) is always plugged into the glovebox power receptacle.
Lee