If you'd like a teaser of what it's like to fly the jets on PE:
http://www.youtube.com/watch?v=MPaQOzu_z3k (SAN to LAX in the CRJ-200)
http://www.youtube.com/watch?v=WMLjLVz0OwA (BUR to LAS in the CRJ-200 with an engine failure, for the I-5 rating)
You need to crawl before you run a marathon, though, and flying a single engine piston under VFR will help cement the foundations that will become important when flying the jet, not so much for fully coupled precision approaches (with those you just sit back and watch the automation do its thing), but more so when Vegas approach says, "change of plan, cross the runway 1R extended centerline at 8000, then circle east of the field, cleared visual approach runway 19L."
Suddenly, you're flying a Cessna again...a very big, heavy Cessna
