Never used them but they look ok thou I wouldn't call them overly cheap I can buy them for nearly same money from Cutwell tools and I think if you look around you'll find cheaper.

I ment to mention in last post don't buy 4 flute cutters for aluminium, single or twin flute work best, only 3 flute cutter I use are rippers thou they do shift some material thou they need a finish cut with different cutter as they are ribbed cutters.