I have been living here for nearly a year and barely speak a lick of French. I know that the perception is that they all hate English-speakers, but I just haven't found that to be true. I have yet to find a French person who didn't speak to me in English or try very hard to help. I guess YQMV.
There are many other pros to living in Montreal, maybe I'll go into them when I have some more time!
It sounds like you havent been around enough. Maybe the local frenchies near the Jewish community are like that but not throughout the rest of MTL.
I lived there 2.5 years and couldnt stand the frenchies. FOr a while I was a salesman dealing with mom and pop shops, half couldnt talk to me and the rest just wouldnt out of pride... not a good combo to be a successful salesman.
The job market in MTL is horrible.
The only Pro that I found with MTL was that nobody mixed into my business. I did what I wanted, dressed how I wanted etc... and never felt uncomfortable.