Preparing for the GMAT

<p>Can we be here yet? My daughter is contemplating taking the GMAT. Specifically, she's wondering how to prepare for it. Have any of your kids used a test-prep service to prepare for the GMAT? Is that the way to go? There seem to be several companies (Kaplan, Princeton Review, Manhattan) that offer a variety of options -- large classes, small group insturction, live online instruction, and self directed online instruction.</p>

<p>Any thoughts or recommendations?</p>