I'm afraid you've asked for lecture number four in Political Science 101, which is a 50-minute exercise.
My view is that the House of Commons worked as well as it could in the context of the day in the seventies, eighties, and nineties. Increasing the size hasn't changed it in fundamental ways or made it better. I don't believe it's made members' capacity to represent their constituents fundamentally different. I've been observing members of Parliament and have known many of them over the years, and I don't think that every time we increase the size their jobs, they become better or that more citizens in downtown Vancouver or in rural corners of Kingston are better served. There's no evidence of that.