The Bernina 830, for the most part is wonderful with all of the new technology it covers.  The size is extra large but still fits in a home sewers room comfortably.  It is fast, quiet, and advanced in its features.  The problem is that the sensors are way too sensitive.  It sends out frequent error messages saying there are thread breakages or it is not threaded even when it is threaded.  If it has the wrong thread type or color, or is not threaded tightly enough in the sensors, if the bobbin isn't threaded just so, then the error messages pop up to hinder your sewing.  Even when you think...