I do agree that Westjet is really not in the LCC realm as it used to be. They seem to be differing themselves more by their standard level of service. I know quite a few people that say things like ...."it's easy to go somewhere for a weekend with Westjet's cheap fares" and will tell them to compare them with the other airlines.
So far have only flown Jetsgo YWG-YYZ, the flight was quite full. I like that you can get seats on the one side that have only two seats, so no crowded middle seat. If you can get the emergency row seats, as I did, there is lot's of room. Have another flight with them next month