It was fine a few years ago when I didn't have much work to go along with the traffic I brought in. But now that I run actual stores, it's just tedious and time consuming. I'm not going to spend hours on end tweaking ads and pages to make them happy. I have products to order/ship, customer service, and other things to deal with. Just never understood why they wanted to make this a hassle for business owners.
I know some people believe that they are trying to push out small business owners in favor of large ones, and maybe there is some truth to it. I've had years of experience with Adwords and still don't understand what they're looking for. Can't imagine a complete novice trying to run a campaign for their store.
Just make it simple. Just let me advertise or not. Don't give me these arbitrary numbers that frequently change for no specific reason that can dramatically effect my traffic. I can't think of any other form of advertising that makes you jump through so many hoops.