Mine is back up and running for now. I don’t really trust it, but it seems to be doing fine at the moment. I think it doesn’t make sense to use these or a bitaxe as anything but a solo miner, so whether or not it is a good purchase depends on whether or not you hit a block, or need the heat. I think I’ll wait and see if bitaxe releases a higher speed device with a better price per th before thinking about buying anything else.