It went about as expected, IMO. 90% of redditors just don't care that much - even if they agreed with the blackout in principle, most of them were likely just waiting patiently for their favourite subs to reopen so they could go back to browsing as usual. A quick browse through some of my subscribed (and still open) subs revealed a lot of commenters weren't even clear about what was going on.
But it has had the effect of essentially kickstarting a community here which seems to be taking shape nicely and there's finally a (small but growing fast) alternative to reddit - which didn't really exist before. I can see the following months and years seeing a gradual shift in user base from reddit to here.
Reddit's not going to die overnight; that was never going to happen. But it's possible it's the beginning of the end of their empire and the slow decline to the ranks of the remember-that-website-whatever-happened-to-that club. Time will tell I guess.