Hi , I believe you can use any broker but some points needed to be taken care of. As you're going to invest a lot in your car whether it's a Used or new one you must verify the details of broker accreditation. Before, finalizing anything you must think twice. In my personal experience I have purchased a car through broker and In my case I have satisfactorily checked all the details and major things that should be kept in our mind.
I have also convincingly verified all the dealers on the web and also visited some of them after consulting with my broker. Make sure to do you homework and check the dealership is verified or not.
Broker can be very useful if you don't have any idea with some aspects of purchasing but make sure to go through the web before anything. So, its your choice I am in favor of broker but with certain standards.
I've never used a broker before but I've checked reviews on-line and I'd welcome people to give me their personal experiences with any of them.
Do you have a list of items I should confirm before placing my order?