Hi @Dgrimm and welcome aboard! 
I am not entirely sure if this device will be the very best choice for live playing… in my opinion it is rather designed for playback (but i may be wrong though).
What i personally can recommend is this little box:
https://www.sweetwater.com/store/detail/ScarSG3--focusrite-scarlett-solo-3rd-gen-usb-audio-interface
It’s the audio interface which i use myself and it’s working flawlessly so far.
It is small, it is a lightweight, it has quite good latency values, it has symmetrical outs (TRS) and it’s only a third of the price of the Radial box.
There also was a discussion in the past where the Radial USB-Pro was also involved:
Latency - to old, to much or wrong equipment? - Gig Performer on Mac OS X - Gig Performer Community
Maybe @SirTommes can tell you some more about it… 