I have not sewn with it but but I did test the power source and the machine humms just fine. The case has some light wear. The manual is in good condition and the accessories kit has a bunch of goodies in it. I don't know enough about them to tell you what they are but I'd be happy to take more photos of them if you are interested. I assume that anyone looking at this knows the quality of these machines.
I don't know sewing machines but I do know machines in general and this unit looks great. I will answer any questions to the best of my ability.
Possibly on Saturday 7/24 if I make it back home in time to get to the post office. The item "Bernina 830 Record Sewing Machine In Hard Case, complete, very nice condition" is in sale since Monday, July 12, 2021. This item is in the category "Crafts\Sewing\Sewing Machines & Sergers". The seller is "josco2527" and is located in Pasco, Washington. This item can be shipped to United States.