i used 3M restoration kit last friday
worked quite well, although, unless you've had experience sanding, i'd recommend you stay away
the headlights look like trash after the first step, you may get pissed or impatient...
with sanding and polishing, you gotta take your time and work slowly with it -- don't give up!
anyways, it worked well for me and my headlights are crystal clear, onto project retrofit now!