Facebook is good for promoting mine and a load of other Halifax bands' gigs etc, but I also have a page for my guitar tuition and have found that word of mouth, advertising in local businesses and the simple task of printing business cards has done a hell of a lot more for me than Facebook, same goes for our drummer who recently set up his own joinery company and has aqcuired shitloads of work through word of mouth with hardly any coming from Facebook. It works for some, not so much for others.
As for Arrow, they can bollox for all I care
I'm joking obviously