Offered a job in Vancouver, need info on work visa and PR

I got a job offer at vancouver and i am currently working in Bay area. The company that hired me wants me to come over in a work visa because according to their immigration lawyer PR will take close to 6 months. I have already filed for express PR and my application is in the pool.
How easy would it be to get a PR once i get to Canada ? I think working in Canada will help my express PR application. Anyone with a similar experience here?