I have a large acrylic extension table around my machine setting on a height adjustable 5' long Wal-mart table.It's set up to be at an ergonomic height for me, the needle and my line of sight are exactly lined up, and knees bent about 90-degrees. Very comfortable and the quilt doesn't hang. I also have a machine in a cabinet which would be fine except the opening for my legs is a little too far to the right for the line of sight to be lined up with the needle. So I much prefer the extension table setup. So I think the answer to your question is that you can make either setup work well. My quilts do not hang on either one. I think you would enjoy watching Margaret McManus address this topic at this youtube site:
https://www.youtube.com/watch?v=hbmQ2riM7Yo. All of her videos are very informative.