Yes, I never fully studied those lines, when I picked up the Italian, because the club expert I was friends with said stay away from those lines that was in the early to mid 80's, plus they were complicated, and really above my level, I was only a beginner at learning the openings.
Granted new knowledge maybe out there now. If you do play Ng5, be prepared for fireworks, its definitely not for the faint of heart.
I would recommend beginners to stay out of that mess. True experts, might be ok using it, but beginners no way. Its way to complicated, and can get you into real trouble quick. As BatGirl's game shows, its a perfect example.
An interesting miniature. I have never seen this one before, it is definately worth remembering!