So far I have zero complaints about it's speed, power draw, it's construction, packaging , or reliability. Right now, It appears to be a roughly 100x BE100 USB Block Erupter in terms of performance. I expect the software inconvenience will get ironed out over time, and then it will be a pretty easy device to do whatever you might want with.
Thanks for your neutral comments, we are going to improve it. I suggest not running up than 290m, we tried run 40 units with one hub and R-PI, performance was good.
I would suggest having that rpi image available for download, would make several of my customers very happy.
+1
He told me it would be uploaded later today