Well Bob... it doesn't feel all that different. Fortunately, the general mentality and way of thinking of Canadians is very similar to Britain, unlike in the USA where I would feel very out of place as a Brit.
In short, this means that apart from the accent issue Canadian people feel just like British people. The stereotypes just aren't true
The general nature of the state is more or less the same too. It's a welfare state, though the fact that Canadian taxes are lower means that you don't get as many free or discounted services from the state.
Driving is trickier, since my impression is that I see more unsafe driving (especially failure to indicate lane changes) over here.
Canadian society is just as diverse as Britain, both are countries that seem to embrace multiculturalism.
Property and petrol in Canada are dirt cheap. Sales taxes are less than Britain too.
There are a crazy amount of power outages. Toronto seems to have as many power outages in an average month while I've been here as London (UK) has in a decade.
Still, all in all I like it. There is actually a growing chance that I may not move back to Britain!
The most irritating thing, though, is that a Canadian citizen resident in Britain has full voting & political rights, but British citizens resident in Canada don't.
