I have this set:
http://www.tristan.bc.ca/cart/produc...&cat=27&page=1 and this set:
http://www.tristan.bc.ca/cart/produc...&cat=27&page=1 (I have no idea why red thread?) and about all the grab bags of the Aurifil. I don't care for the Aurilux thread for machine quilting but it may be best for embroidery work. I also have the big cone of Genziana Cotton Mako 50 wt from Cucirini Tre Stelle to compare to Aurifil. I can't tell any difference between the two.