I already use one of these for my lounge room HTPC
The fan is a bit noisy though.
The i5 does playback everything just fine though.
The current NUC hardware is quieter and the i5 equivalent in the NUC is a newer cooler running processor so its quieter. So you could order a NUC and build a windows machine yourself. Im running dual boot on the Id currently. Using windows MC19 for video and the Id on Linux with my external DAC for some serious 2ch listening or HDMI for multi-channel Audio.