Welcome to the board from Southern California!!!
I have a Bernina 630 and a great sewing desk that I bought from my Bernina dealer. It sinks the sewing machine to level for quilting and I can bring it all the way up if I need to change the bobbin or use the free arm. It will also sink all the way down and I have a cover to go over it to turn it into a flat top in case I wanted to do my cutting there or something. I have 4 drawers and a tray(fits a 12x18 cutting board) on the front left and the desk has an extension on the back that folds up and gives me an even larger surface for quilting.