We went with Transat. We've had a couple hiccups with the service provider, but my travel agent has been wonderful in providing work arounds to the changes by Transat. In the end, I think the inconveniences probably benefitted me in the end. I've also heard horror stories about Sunwing, from other brides, and my bridesmaid (who is a travel agent as well - who also won't work with Sunwing anymore).... so I definitely wouldn't book through them. Good luck! Find yourself an awesome travel agent! My first agent was brutal. My second one I stuck with, and he's fantastic.