I settled on the Optimum line. I really like ONR as an interior detailer and window cleaner. Opti-Seal is dated, but looks incredible and is so easy to use. Detailer is nice, but won't buy it again. Opti-Clean is basically ONR on steroids. Haven't used it yet but makes for a great quick detailer or waterless wash. Optimum Power Clean is great too. Their soap cleans well but won't produce a lot of foam in a bucket compared to something like Hyper-Wash. Most of the Optimum line works well together.