Not sure what issues you’ve had other than the thread breakage, but I have a small suggestion for that. I have a Handi Quilter Moxie XL that I bought in April. At first (after the trainer left, of course!) I was having a lot of problems with thread. It would break, or shred going through the needle, multiple times in every quilt. It felt like it was happening every few feet! I tried everything I could think of - new needle, rethreading, fiddling with tension, changing the thread type - nothing worked. I was about to give it up as a lost cause. Then in one of my many google searches I ran across someone who said that some machines prefer the face of the needle to be canted ever so slightly to the right (think between 5 and 6 on a clock face, but a smidge closer to the 6). So I carefully twisted the needle the tiniest bit and it worked! I bought one of the little cylindrical magnets so I can tell exactly where it’s facing and I use that every time I change the needle. I’ve used So Fine, Omni and Glide so far, all without problems. I don’t have Prostitcher yet, I’m only doing FMQ, but I’m pretty confident it will be okay with that when I finally get it.