Their account managers are great at helping people spend more money, but less helpful than Comcast at refunds when they make a mistake. We have spent a few million dollars over the years with Google, and one time they ran ads globally for 24hrs costing us about $4,000. Easy mistake on their part, but getting a refund was impossible. They have a monopoly and it wasn't a huge deal, but even fairly benevolent monopolies can be a bit abusive.