Basically everything a gambler would want. They also have a sportsbook, which is great because they have a lot of hockey betting options there.
They have the lowest fees and highest odds for you as a player, which means they are not greedy. Withdrawals take a day for bank transfer, crypto is instant (20 minutes). So here's my take on the best online casino for Ontario: I was gambling back in 2015-2019, and wanted to start again early this year, so I did a bit of research here in Reddit and Trustpilot and some other trustworthy sources (not those paid by casino blogs). Lot of casinos got banned in Canada last year.
