Having had these needles in a larger size, I wanted to get other sizes for sock knitting. On the smaller size circular, such as size 2, the joins are not smooth. The yarn constantly catches at the join. I'd bought two, as I knit socks with two circulars. I really tried to make do with them, but just couldn't. Thought maybe I'd rec'd a bad set so re-ordered. One of the two new ones had the same problem. It is pretty clear the manufacturer has not yet discovered how to have smooth joins on the smaller sized needles.
I bought several sets of these needles and all but one have very dissimilarly shaped tips. when working in the round i have to make sure i cast on so that the good tip is in my right hand. This bothered me but not entirely as most of my knitters pride products are this way. I think its saying something that they can get their customers used to this sort of thing. Its been about 6 months and after one project the nickel plating is chipping off my US2 set. they are more expensive than Addi sock rockets which are always uniform. if you are working with US3 -US6 i think these are great. For socks or any lighter weight projects not so much.