Had a PS Audio DirectStream Junior (DSJ) and traded it for a NAD M10.
The DSJ based system ran off ripped Redbook/hi-res to a souped up mini and then fed JBL 708P reference active monitors. Couldn't hear an improvement with hi-res - not surprising as almost none are natively recorded in higher resolutions. And the 708Ps had internal DACs which rendered the nice DSJ all but pointless. So went back to my 16 year old commissioned passive speakers and picked up the M10 for the best sound I've ever gotten out of them using ripped CD's on a flash drive and Tidal.
But most importantly to me, the M10 $2750 MSRP ("streaming amplifier") can be run without use of a streamer, computer, extra software, USB cables, or interconnects thanks to BlueSound and the one box solution. IMO the M10 is the value leader of the NAD Master Series. It is thoroughly modern, very flexible, simple, and compact. As a big bonus it has Dirac Live room correction on board. The M33 promises to take everything up a notch from the M10, especially the Purifi based power amp, but will cost significantly more when released.
On the opposite end of economic scale, the NAD Node 2i is great value considering you can live happily off Tidal/Qobuz versus investing $$$$ in music purchases. The $1650 MSRP NAD C658 is described as a Node 2i on steroids and a sonic step between the Node 2i and the M10. Both run off BlueSound so no computer is needed. And the C658 also has Dirac Live.
Before buying the DSJ home trialed Schiit Gungnir MB, but sounded no better than a small $1200 MSRP DSPeaker Anti-Mode 2.0 Dual Core DAC/preamp with room correction, so back it went. Like the Schiit company approaches but they're sort of out in left field regarding their DAC designs, making resale a bit iffy.