I've also heard very good things about the SMH-10.
Not convinced Bluetooth technology is neither fully developed or good value for $ at 300.00 +/- a pair, I purchased a new complete J&M head set to try for $64.00, I also installed a passenger communication pigtail. (quick and easy btw)
After using the hardwired headset for a few months now:
-I like the quality of audio for the cost and it all works like it should on the bike.
-I like that there's no charging requirements.
-I don't like the tether.
-I don't like the closed communication to just the passenger, without other options.
-I don't like the 1,000,000,000 to one possibility of becoming a lightning rod in a thunderstorm.
The tether thing really annoys me more than I thought it would. It's very inconvenient in a number of different ways.
I'm leaning toward the SMH-10 now. This option however, leaves your very nice Honda built in radio and communications system redundant. That's a shame.