This review is for the Mk1 version. It works well for what it is. The amp section is a bit lacking, but the ability to try out tube rolling with the dac is fun for a beginner. Provided enough power to comfortably listen to LCD2f and MrSpeakers Mad Dogs on the lower gain setting. There was a time where I would have potentially recommended this, but there are definitely better units out there now, both as combo devices and separate devices.