I have a bit of a dilemma, a local dealer has the car I want.. Loaded up PK1/PK2, Nav and ACC in Summit white. They also have a a PK1/PK2, Nav, WITHOUT ACC in Iridescent Pearl. They will sell me the Iridescent Pearl for $1500 cheaper, because it is aged inventory and Chevy is giving some cash back on those. I wouldn't pay extra for the pearl (I have not seen it, may not like it anyway). So the long and the short is I would be basically paying $1500 more for ACC. Did anyone get ACC and not like it? i.e. Don't like the way it works or just don't find it that useful?