This was a very difficult build. After you buy the table, you also have to visit their web site to pay for an insert for your machine to fill the gap at the flat/flush level. The air lift system is nice but they don't tell you how to actually operate it (push down hard it so happens to be). I think it is normally over-priced for what you get and if it were not on sale when I bought it then I might regret the purchase.