I own the 85 1.8. I have barely used it. When I bought it had a front focusing issue so I sent to Canon they confirmed this issue, calabrated it and sent it back to me. The focus is spot on now. I am just finding it a bit long on my 40D but it is a wonderful lens.
I mostly do portraiture and family photos mostly. I actually have been using my 60mm macro a lot because of its focal length. I have the 50 1.8 but it isn't a great copy so I really don't use it... but it had previously prevented me from considering the 50 1.4.
The 85 is such a beautiful lens but I am in favor of switching if the 50 1.4 will meet my needs better. Any opinions on this would be greatly appreciated.
Cant wait to use it. 
