I posted about this some in the road bike Serenade thread, but since these are MTB wheels I figure I should post her as well.
I received my wheels from Serenade last week. They are their TME9038 shallow rims with CX Ray spokes and Koozer 450 hubs for a) high engagement of 3° b) more importantly, the color. There was a hiccup with spoke length for three of the spokes, but Serenade refunded me the cost of three replacement spokes which I easily installed one at a time. Their service has been great. Fit and finish is very good overall, and spoke tension is fairly even. I've only had one ride on them so far, but they're a big upgrade over the stock wheelset I had been running. 510g lighter, overall. Could be 200g lighter than that with lighter hubs, but I really wanted to try out high engagement hubs so it was a worthwhile tradeoff. Riding these today I realized how flexible and lose the stock alloy wheels had been. The Serenades felt quite stiff in comparison but not uncomfortable. They feel more planted in corners, especially berms, but I do have to be a little more careful with my lines because they bounce off rocks more than the old wheels. I am happy to say that they are very quiet and there were zero spoke pings during my ride.
Shipping took about 3-4 weeks and the build took a little longer as they didn't have the heavier/stronger weight version of these rims in stock and they had to be built. Overall I am quite happy with these. Even though the price is lower than some of the more established wheel brands they feel very high quality. I'll provide updated periodically once I have more miles on them.