The child care fee $7 per day is good, no matter what's your income. But you have to make sure you can get a space. I put my name in the waiting list before I make a decision to have a baby. Higher personal income tax. For example, a gross income $50K, you'll pay about $3k more in QC. House is cheaper, you'll get less back when you sale the house. But for those whose new to Canada, and you don't have a job and you don't have a study plan, and you need some money for survival living and willing to study French (very hard, only for 6 months), you can get about $600 per month in compesation.
So the over all for me to feel good to live there was the daycare fee which in return to QC I pay more tax back.