Our first time flying Porter (Toronto-Boston return) and definitely won't be the last.
We fly frequently and, in comparison, Porter was fantastic. The wheel of our luggage was broken off on the return flight and without any question or debate, we were offered $100 towards our next flight or they would fix the bag. We opted for the $100 as we know we will be flying Porter again.
Our only gripe was the return shuttle to the parking garage. Took longer than it should to arrive and waiting in the parking lot was not pleasant.