Streamer Upgrade

I have a modified Bluesound Node 2i with an upgraded power supply board and Terry Pardo power supply. While I am happy with it, I have the upgrade itch! I'm curious if anyone has upgraded from a modded Bluesound Node and what your thoughts are/were? On the TP website, they claim this upgrade brings "it very close to the level of network streamers costing twice as much" which makes me curious as to how big of a jump others experienced. I'm looking at streamer only as I am not interested in units with onboard DAC's. I currently use Roon with a Mac Mini as my Core. My DAC is the Schiit Gungnir MB. 

Thanks!

-Will