We're testing the Cortech (Tourmaster) tank bag line now. About 60 days into a 90 day cycle of daily use and have had zero complaints. They have magnetic or strap options, removable map pocket, cable pass-through, glove friendly zippers, and come in colors (if you're so inclined). The magnetic version hasn't left any marks on the 'Strom's silver paint in 60 days, we'll see how the Tenere's black holds up for the next 30...
Yesterday's rare storms allowed me the "luxury" of testing the water repellency of the fabric without the rain cover in place (left at home). I was quite happy with the results, zero dampness inside the bag, even riding in a real turd floater (heavy rain for ya'll not fortunate enough to live in Texas).
All that said, we've been told the next shipments out will be in August and a "hush hush" new design. We'll see how that plays out. Still, if I was bag shopping, I'd sure give 'em a look...
Haven't tested the Bags Connection stuff yet, but I used a Marsee Corona (similar ring mount on gas tank) on my old R1100S and loved the mount idea. Might just need to test one of theirs next... :-\