I'd put my two cents in because I just installed mine a few weeks ago but it hasn't been warm enough here to really test it. In fact, I've only turned it on twice while cruising and it was for a minute at most. Welcome to Canada eh.
the only person i can think of with one is Jerry Beach. he is in humid FL, and says it does real well, even being run on low speed only.
also, get one from a 3.8L taurus.
good luck.
if you can't find a taurus fan, go with a used sn95 electric fan on ebay for like $50. I've heard of a few people using the taurus fans without a problem.
some folks use them cuz they are cheap and plentiful at the J/Y, and because you can kinda get away using one with a 2G alternator. they dont draw much juice on low speed, but cool decently.
SN95's are great too, but i think they draw more juice.