The DAC in the Node 2i is very good. I have tested this. It is as good as a $700 DAC.
my personal experience is that this statement is not correct (there are numerous $700 dacs on the used market the outperforms the internal dac in the 2i)
well - on second thought - maybe the statement IS correct - it may be as a good as ’A’ $700 DAC... that would be a somewhat poor sounding one though