I've been using only their thread for about ten years now. I have a very picky Bernina that won't let me near her with Coats and Clark thread, but loves Connecting Threads. I usually buy the larger spools and they last forever, I buy the gray, beige and neutral for quilting but also have the black and navy. In my experience, it's great. I am a very thrifty person so this thread is a money saver for me.