Do your research.
There will be very little in the way of support for you once you've paid for and completed your rating. No matter what you're told.
And that is not me bitching. I flew many times with the MD of C4U - he was the FO, I the Captain. A nicer guy you couldn't meet, but the facts remain that it is a business.
You are a profit centre and there are few jobs for low time FO's, even less for no time FO's.
Don't be fooled by anyone.Only do it if you can AFFORD it.