I have this machine and love it...any issue I have had was me...not the machine...I am a fairly new sewer and self taught...oh and oh course lots of help here and on the internet. I can't say enough how much I love this machine...it you have any tension issue...it may be your needle...there is a quilting needle to use when doing FMQing...once I switched mine to 14 quilting needle it works great...no more breaking the thread, or shredding the thread. I can Quilt a queen size quilt and one of these days will try to do a King size. I did have a few issues but it was me not the machine...