Yes and no. The hash rate per dollar is fantastic, but with anything that comes with a low price, its overall value is increased. It has a higher hash rate than several GPU's that would cost considerably more so it is a great 'thing'. Also, its likely designed for the big mining market, not the tech-savvy, hobby guys like
@R-T-B etc, who will tweak to the end of the earth for maximum efficiency. I only hope that Eth does not release code to make these redundant and force the drive back to GPU's. Perhaps it is against the law to manipulate the code to destroy another person's business?