I think that it was the right thing to do.
Hopefully, the use of chemical wpns is stopped. In the short run, it's back to conventional wpns, should Syria continue to bomb their own. Not fantastically better, but a step in the right direction.
For the rest of the world, the chess game begins. Does Russia change its policy in the ME? Is the US strike going to motivate the region to stop or slow the fighting? Will Assad hold on to power, or will he go out in a blaze of glory, taking whoever gets in his way with him? What about China?
Lots of interesting things to watch over the coming weeks.