If I remember correctly, the Raven was the Binks double action airbrush (the Wren was the Binks single action brush). From what I remember from those days, it was supposed to be a very good airbrush. I would say give it a try, you might like it.
I think you are going to find that the biggest problem with owning a Binks airbrush these days is the fact that Binks withdrew from the airbrush field several years ago. A while back, I needed to overhaul my Wren but couldn't find any replacement parts (seals, washers etc). After several months of searching, I stumbled across a mail order business in Pa that supplied specialty tools to automotive restorers/hot rod builders. They carried Binks full size paint guns and had carried the airbrushes. They had the spares in stock, but admitted that when they ran out, there would be no more. I bit the bullet and purchased enought parts to do at least two more overhauls and what I thought might be needed for an occasional repair (tips and needles). So when those parts are gone, the Wren is unfortunately consigned to the scrap pile.