It depends on case to case. I received my ECA from WES last year after 2 months of applying.I don't know where your immigration consultant gets information from, but it should take up to 20 business days after receiving all documentation. Mine was ready in 15 business days. I think that you should probably get an ITA within the next 2 months once you get the results
But to be fair to them, my Bachelors and Masters were from 2 different countries.