I have been trying to use my machine effectively for some time for a small business I have, but unfortunately my machine has been in the shop more times in recent years than I've been able to use it. Not only does it birdnest in the bobbin area, but most recently it was not responding to touch on its display. My Viking reps admitted these Designer Diamond Royale machines are prone to issues. I tried to reach my rep yesterday, she wasn't in but I hope to hear from her today. Not sure what they're going to be able to do as my original purchase was already traded for another, same model and everything, but same problems! So, okay, on this one they replaced the computer board for the display, the unresponsiveness seems to be resolved but there are still issues. I, like many others on this site, would like to have a refund as it is very unreliable and I cannot use it for my business as intended.