I have used it on horns for a big band and it sounded as cool as it looked for the application. Trombone mic IIRC. Better than the 58's we usually end up using.
They make a red one that is similar in specs I believe. Also a great sounding mic for those mid-rangy instruments.
The red one is a condenser. The black one is a dynamic.
They are now calling them the Blue Raven and the Blue Cardinal. I guess someone decided advertising that the products are a collaboration with Blue Microphones (or is it BLUE? B.L.U.E. maybe?) would be a good idea.
I have been interested in them since they came out, having been a fan of a lot of EV mics.
The way I see it, if it's priced like an SM57 and is at least as good, they'd be an inexpensive way to expand mic selection and add some stage dress too.
Everyone (all three) I have talked to that's used it liked it. Guitar cabinets and horns have been the applications.
You know, stuff you stick a 57 in front of.