It seems to only get updated once a week and it is never the most current stuff. (goodereader.com)
They have been around forever, but have gorgeous current stuff. (denverdarling.com)
My guess is that in 2015 we will see the depth of CanLII, its historical scope, passing the threshold from being fine for current stuff to being enough for usual legal research (except in a small set of cases where a comprehensive historical research is in order). (slaw.ca)