I have the 1500. The only problem I have had is when using the tread cutter the needle would come unthreaded. It was frustrating. The dealer couldn't tell me why, she just kept wanting me to have a new thread cutter put in. Some one here told me to not thread through all the three holes of the thread guide on top. I thread through just one hole and that stopped the unthreading. One more thing, I haven 't figured out the color pressure guide or the pin feed. The dealer told me to keep it in the pin feed for all sewing.