I'm satisfied that first past the post gives us effective governance in this country, based on the outcomes that have been achieved for Canada and where we rank in world rankings on just about every measure. First past the post is fine.
Some people seem to prefer that MPs should get at least 50% of their riding behind them and want alternative voting, a ranked ballot, or whatever. That is fine too, if they want to go that way, but then you get into the question of whether it's a more complex system.