I do have an 830. Love it. Had a Bernina 180 and traded it in when I bought the 830. I have regreted trading it in as sometimes I needed to take a machine when I wanted to sew for others or in a class. The 830 is too heavy to take, so consider the weight of your new machine you plan on purchasing and IF you really want to trade in your 440. It is always nice to have that 2nd machine for a take along.