The only things I haven't liked about my Sonata were
1) the smell of the oil- but I ordered some nicely scented oil from Rowan Tree Woolery and that fixed that
2) one of my felt pads came off, but I replaced it with some I picked up at Target
3) the orifice hook didn't have a little hole drilled in it so you can put something through it to make it easy to hook to your wheel and not lose it, and I have already misplaced mine. Luckily I have crochet hooks to spare and mutilated one to fix it.
Otherwise, I am really satisfied and love love love the wheel and what I spin up with it.
I don't think I'll need the lace flyer for nice lace weight either, which is really nice.