The New York Times reports " Sotomayor's Appellate Opinions Are Unpredictable, Lawyers and Scholars Say". The story isn't that surprising when one considers this 1996 Sotomayor quote that Ed Whelan dug up:
"The public expects the law to be static and predictable. The law, however, is uncertain and responds to changing circumstances. ... the public fails to appreciate the importance of indefiniteness in the law."