I recently bought both sets of the Cypra double pointed needles and I could not be happier. They are probably the best metal double points I've ever tried, and that's not an exaggeration. Not only are they well made, Lykke appears to have put quite a bit of thought into the design. At least for me, the needles unexpectedly address the common grievances of double points made with other materials. They have better presence and body when compared to wooden needles, but are also noticeably lighter and more agile than the average metal design. This balance extends to their texture as well: the DPN's are super smooth and allow the stitches to glide nicely. But in contrast, they aren't annoyingly slippery either, having the needle get past you and spontaneously sliding off the knitting completely. This has been an issue for me in the past, and why I had started avoiding metal double points for my projects.
It may be down to the craftsmanship of the Lykke brand, but copper as a material for knitting needles works so well, it makes you wonder why it hadn't been tried more broadly before. The copper is itself beautiful and the "Goldilocks" quality it appears to impart on knitting needle functionality is surprisingly impressive. Totally changed my opinion on metal needles and - because I am a frequenter of double points - easily justifies owning the full sets.
Highly Recommend!