I had my machine lift put in and adjusted it--even with the table as apposed to sewing on the arm.
I couldn't get over how well I could see what I was sewing. It's lower than the arm and I am looking down on it. I've been sewing for years on the arm and can sew a straight line, but actually seeing exactly where the needle penetrates will make it almost perfect.
It's like having the back of your machine tilted up for better viewing. I would recommend a flat bed to everyone.
Syl