"...and what were the taxes like under Harper?"

LOWER. Trudeau cost me $1500 so far and his carbon taxes, CPP tax increases and other boutique tax changes haven't even fully kicked in yet.

That's what happens when idiotic governments make decisions based on national averages in then try to produce a one size fits all solution. Income splitting was a huge benefit in jurisdictions with high average incomes but had high costs of living like Alberta and Sask, the Territories and Vancouver and Toronto. So we all lost income while the high cost of living stayed the same. His scaling de-escalator for his Child benefit also took money from these same people. The child benefits the conservatives had in place provided a diverse amount of solutions for all different types of families. Yes each one by itself wouldn't benefit everyone but that is why it was a bundle of options.