I agree with trying it out. Make sure you know the brand of the frame so you can check it out on the web. I would make sure the table is level also before trying. It will make a big difference in sewing quality. Also consider what size the frame extends to and what size quilts you make. Also what extras are you getting (machine and frame manual, leaders, rulers, stitch regulator, extra bobbins, side clamps, needles)? I have a Grace frame extended out to 12' with a Juki machine. Can you get pictures (from front and back) and post with the asking price?