I've had the 15000 for a couple of months. It was not a planned purchase, but a nice (really nice) gift from my husband. I have found many great bells and whistles I didn't expect such as warning when the bobbin is low or when the top thread is out, the presser foot that will lift when you stop sewing (needle down -great for pivoting), wonderful lighting, magnifying glass in front of the needle,beautiful stitching. I could go on and on.
I have a big learning curve for the embroidery, but I will learn. I plan to use this machine for quilting.
Best to you on your decision.