Keep in mind that what LJ says. But it is even more simple than that - they are sales people. Like all salespeople they work for themselves and their family and their number one goal is to complete a sale and put food on their table. The key is to find one that you feel like you can trust, one who doesn't make your hair stand up on the back of your neck. Most will do just fine as long as you aren't a complete sucker.

In truth, if you know what kind of house you want, the neighborhood you want to be in, etc. Don't waste time and money with a buyer's agent. The seller already has an agent who can complete the paperwork for you. They will of course disclose that they are representing the interests of the seller, but that is ok. You are going to require a home inspection by a reputable inspector, you will have a title company clear title, and you have access to USAA so get in touch with their mortgage services, they are excellent and easy to work with.

The selling agent can complete all the necessary paperwork and you can often negotiate a lower selling price because you are removing all or most of the second agent's commission spread. I have bought homes with and without agents, as long as you stay on top of things and keep your eyes open then you should have no problems.

In the end, though, the agent's only true loyalty is to themselves ;).