Training is excellent, but you will be fighting it out with others who have the same 100 hours and chomping at the bit to get work. you have to go on what some refer to as the "Great Road-trip" in the spring to knock on doors and beg for work.
If you are under 40 and qualify for the temporary work permit you'll more than likely find that you'll end up wasting 2 years washing helicopters and flying about 10 hours per year, just to barely stay in the game, basically the carrot just dangles in front of you.
Is it worth it? that would have to be up to you, just remember there are 100's of eligible Canadians with fresh licenses out there trying to do the same deal.
Regards
H,