I was only 3 when the Good Firday Agreement was signed, so I grew up largely outside of the troubles and I don't have much knowledge of Paisley and his surrenderless, thorn in the side leadership which he'll probably be most remembered for. I did witness was his striking turnaround in 2006-2007, when he sat down with the very republicans he had previously refused to share a room with, and reformed our power-sharing assembly with them. The DUP had become the largest party in Northern Ireland before then, so perhaps the desire to grab power had become too alluring, who knows.
Having said that he really did seem to mellow in his later years. There is an interesting in-depth interview the BBC aired not long ago, if anyone is so inclined:
I would say his death perhaps marks the end of an era given he was the sole major opponent of our peace agreement, but given he played his role in the new assembly I guess that wouldn't quite stack up. Either way, our assembly still stands and no longer has to deal with the problem of widespread secterian violence. No, our politicians have successfully moved forward onto the problems of tit-for-tat politics, massive intolerance and potentially crippling debt................ =S