Purchased my CBA in August from Universal and commute daily 26-30 miles round trip. This is my first dedicated commuter and it has done a great job. A few notes:
-It took awhile to get the Alfine hub/Gates belt dialed-in. I was new to IGHs and the learning curve for adjustment was steep. Likewise was belt tension. Had it too slack for awhile and it would jump teeth under load. Had it too tight for awhile and the hub would make noise.
-BB5 brakes are doing just fine. I had heard complaints, but I've been fully loaded (dual Ortlieb panniers plus my 200#s) at 25mph when a car turned in front of me. Full stopped before I hit him - straight and true - no drama.
-You can put too much torque thru the hub. Alfine hubs are purported to be bulletproof, but I have destroyed the freewheel mechanism of mine (Shimano replacing under warranty). Don't know what to think about this situation yet. The hub has 2,000 miles on it.
-Michelin City tires failed me. Both had sidewall blowouts. One was dramatic, like a gun shot, on a curb crossing. The other was slow. Replaced both with Bontrager Race Lite Hardcases. They have much lower rolling resistance but less traction.

I have done a few centuries with the bike and it could use a lower first gear as well as a higher top gear. I plan on upgrading to the Alfine 11 when it and a brifter come out.

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Here is a picture of the beast before the front Michelin gave out. I have added a Topeak rack and Civia plastic fenders as well as the Civia double stand. Latest add was an Ortlieb handlebar bag that matches the Ortlieb-made Civia panniers.