I've been riding two sets of Specialized Roval Control 29 wheels for some time now, one set on my former Stumpjumper hardtail and currently on my Epic. I haven't had any problems with them so far. They feel very light and stiff. Having been a Chris King hubset user for years now I appreciate the quality of the DT Swiss hubs and the fact that they're hand-built vs machine-built.. They're feature straight-pull spokes and interchangeable end caps for different suspension fork dropouts. I run them tube-less with about 23-25 psi.
I'm curious about carbon rims. Being a relatively light rider I think I could manage not destroying them for a few seasons. However, they only offer them in a race-red color option, and I'm very picky when it comes to matching color-ways. Rumor has it that they're developing a black & white option later this year. I could easily drop a pound in rotation weight.