Hi.
Me and my girlfriend also have Scala riders, altough not the teamset.
I think the only difference between buying it as a teamset is the cheaper price than buying both separately AND the fact that its been paired at the Cie.
Since we both have bikes, we were able to test it thorougly during our two week motorcycle trip this summer and I have to say it is almost flawless. I was able to switch from gps instructions to chatting, to listening to mp3's coming from my Ipod (plugged directly into the Scala). Also my Garmin 550 was connected via bluetooth to my gps unit so I could deal with cell phone call through the Garmin interface and communicate with the Scala.
Great kit, will work further than a mile distance on highway, and 3-4 curves away in the mountains of the Cherohala and the Blue Ridge Parkway dense woods.
Battery life, well, if you have a fiancé like mine that likes to chat for hours and hours at a time....

I will last about 8hours of riding
Only gripe ? Sound quality is not the best for music listening, mind you, you do NOT want to listen to super loud music (has to go OVER the wind/engine noise) because we'd be going deaf within 4-5 years anyways.
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Mods: DDM HID 5000k, R&G crash bar, 18T front sprocket, , tail tidy, screen, Oxford LED flashers, Hyperlite LED brake lights. Bags connections Daypack , Zumo 660 GPS, Scala riderQ2 eadset.
http://www.youtube.com/user/stormriderST