The first MS-2 running Windows 7 OS is at Scott's place and making music with his Oppo BDP-105. Did this one as a custom version as the Oppo does not have a Windows 8 OS driver. He is running the Oppo ASIO driver.
Next unit out this week is Phil A's for his Meitner DAC. All boxed and ready to ship.
Yes, the MS-2 is up and running in my system. I'm using Windows 7 and using the Oppo 105 as the DAC. I had some growing pains figuring out how to integrate this new source in my home network and with using my color Nook as a remote. Fortunately, Rich was as patient as a man can be and talked me through my confusion.
The unit is quiet and I heard an immediate improvement compared to optical disc playback. Both the MS-2 and the Oppo are new, so I expect continuing improvements as everything burns in. I've got a new WyWires silver usb cable on order to replace the stock generic cable. I'm expecting big things!
I give an enthusiastic recommendation to the HAL MS-2. If you are comfortable navigating the "wonderful" world of Windows and networks, you should be fine. If not, Rich will give you superb guidance.