I still think Google's Adwords customer service is pretty pathetic. When you spend $50,000+ a month and have to go through a lot of work to get the phone number for the first time and then can't get a consistent account rep it is very frustrating. At those kinds of spending levels a lot of companies will roll over for you, even if it isn't a 1,000,000 dollar account.

They also apply their policies very inconsistently, and greatly favor large advertisers. I think their documentation is great, but they need to make a better effort to reach out to advertisers. I am not a huge fan of Microsoft's adcenter, but their customer service is incredible. Their number is always nice and prominent and when you call they will do anything to help, and work hard to get it solved then, where as Google will take their time.

Again this is a sample size of one, but google goes out of their way to not talk to you, they even hide their customer support chat service through several layers of help screens.