I love the design of the Tumbler but like 8Cr13Mov, Chinese D2 has become a deal breaker for me. Had they used 14C28N, I'd have been all over it. Ironically, the 14C28N that was originally designed for Kershaw and was once exclusively used by Kershaw is now being used by Sanrenmu (including Ruike and Real Steel) at prices competitive with Kershaw's 8Cr13Mov.
The premium Elementum in S35VN/Micarta is a really nice knife. I rather like some of the Civivi designs. The Baklash is still one of my favorites. While their Isham designs aren't my style, I'm hoping to see more collaborations from them in the future. Coincidentally, Civivi has recently started using 14C28N too. I just ordered their new Riffle.
If Kershaw is using a new Chinese company to do their OEM, I'd love to get one apart for inspection. Is it permanent thread-locker or just too much? Easy disassembly is important to me. Having taken apart a bunch of Civivi knives now, their internals are nicer and leave the factory cleaner than a lot of other budget knives.