We have been using TruGreen (or in the past ChemLawn) for many years both here and Kansas where we lived fro many years. They have always been reliable and get the job done. No complaints. Reasonable prices.
Having the RO water gives me tremendous peace of mind about the water my family is drinking and we've become so accustomed to the soft water that we all notice the difference immediately when we travel and have to use regular water. I hate to say it, but we've become "water snobs".