Do not use this company. Like others here who have posted issues with the cashback offer, I had the same very negative experience in trying to get the cashback. They sent me to the bank not one but twice with a check drawn on a bank account with no funds to cover it. Very fraudulent. It wasn't until I demanded cash, and drove to their offices to pick it up (after months of being put off and yanked around), that I actually received the cashback. My installation was reasonable, and the end result acceptable, but the entire experience was marred by Scott's shady dealings with the cashback offer. (My experience was further marred, when the installation tech broke a piece on my truck, and opted not to say anything about it. Had I not been watching, I would not have know about it until too late. Thankfully I was watching, called Premier afterwards, and they took care of it.) It's a shame that they have such shady practices, as there are many other companies in the valley that offer similar deals, and will probably give you the promised cashback, without the shady actions and jerking customers around.
Update: I noticed that Scott has been trying to counter-act some of the negative reviews on Google Business, by writing his own positive reviews. Shady.