So there's been no substantive talk of Alito here as yet. I don't really know anything about him, save that he is vastly more qualified than Miers. No doubt plenty more will come out in the next few days and weeks. Tentatively, though, I think Jonathan Adler's comments in his Tuesday Wall Street Journal opinion piece are probably right on the mark:

We may not all agree with all of their decisions, but we will respect their judgment, appreciate their analyses, and admire their commitment to the law. As a law professor, I look forward to the opportunity to study Justice Alito's future opinions with my students, as I am confident a Justice Alito would contribute well to a Supreme Court of which we can all be proud.