I love my Harmony needles. I am working on fingerless mittens in which I am using two circulars rather than dp. But when I starting fooling around with the pattern I am using I didn't have two sets of the tips I needed so I am using some bamboo circs I have and the options harmony circs. I kind of like having the two circs different. I rarely forget where I left off. I did however just order an additional set of the tips (mainly because I thought I lost the ones I had
I haven't had an issue with color (yet), but could see where I might. But I love these so much I think I can deal with it.
Just my humble opinion to add to the others.