there are so many great threads on the market===i do not restrict myself to one particular (brand/type) i use many different threads- what works for each particular project- i use Gutterman the least- when i first purchased my sewing/embroidery machine i spent a couple hundred $$ on a whole display set of gutterman threads- when i finally started running out of them i never replaced any of them- found there were so many different ones that i felt were much better- easier to work with-did a better job. it is probably my least favorite thread. I like aurafil threads, YLI i use alot of , silk threads (from clover & YLI) machine quilting threads from connecting threads, threads from Superior Threads, sulky threads...i know if i went into my sewing/quilting rooms & looked there are probably at least another half dozen or more types/brands.