Okay, I bit. Here's my report:
Overall, good value. I'm satisfied. I got them because its always bugged me that I can't rotate the brake lever assembly forward any more than I can. (The MC interferes with the clip-on riser.) So I thought being able to move the lever a little closer to the grip might help the wrist fatigue a little. So far, so good.
There are a few details to criticize though.
1) Though the overall machining is very good, they leave the fasteners pretty loose at the factory. This gives them more slop in the (several) moving parts than optimal. However if you try to snug up the nut on the cap screws, the nut recess will prevent a socket or open end from going on. I solved this by adding a stainless steel flat washer and a bronze lock washer to raise up the nut a bit.
2) Again, the machining of the dove-tails on the sliding extensions is well done overall, but the design calls for a nylon flat washer to conform enough under the screw head to lock in the slider. It doesn't. (One side was a little better than the other.) I solved this with an o-ring under the ss washer.
3) One of the slider screw heads had a defective allen socket. That makes three different fastener upgrade/replacements I had to make.
4) The main pivots don't have bronze bushings for the shoulder bolts. I lubed them. I'll just have to see how they last. (Strange though because the adjustment pivots do have them.)
Anyway, I can't argue with the value. No way I could come close to putting something like that together for $69.99. (Initial link said 59.99, but when you get to the ebay page its 69.99). So I give em a B+ Thanks for the tip Seb.