Yes, I'm thinking about signing up. I see that it's free, but they require you to have gone to a Signature within the last 6 months to keep it active... not sure I will be able to do that, given my efforts to avoid them.
CAA has generally been pretty good, and I have Titan as a backup. Between those two, there is almost always some sort of discount, but at some airports it's still crazy. I was hoping that Bravo would offer a discount on the handling fee, but that doesn't look to be part of the deal. Often that's the worst part-- $300 or $400 handling fee, or buy 100 gallons at $9/gallon?