Pre-law school bootcamps are a crock, and I'd bet a "generalized" 1L review course won't be much better. Once you get into school, you live and die by your professors. Every professor teaches what they think is important, interesting, relevant, etc. You learn all the same basic concepts as all other 1Ls, but beyond that, your professor may not teach certain smaller topics, may teach a slightly new take on smaller topics, and may prefer a certain policy line.
You'd be better off with supplements, and tailoring your studying to what your professor does instead of paying big bucks and wasting an entire weekend/day/whatever for a generic review course.