Replying to Rossignol S3

Hey all
I was looking around for ski's and i think that the S3's looked pretty good for me. I like to ski everywhere, don't want to be in the park too much this year but probably will be there a bit anyway. I'd rather drop cliffs, ski in trees, get some pow and such.

Do any of you have experience with this ski? you like em?
Im 180lbs and 5' 10.5" consider myself advanced, and was wondering if 186cm would be good or too big. 178 Maybe then? Any input would be appreciated.