network streaming with melco/NDX experiences

Hi all,

curious about peoples experiences of SQ when ethernet streaming with the Melco units (following the recent firmware upgrades) N1A and N1Z for me would be a direct connection to a NDX 

1) is there a uplift in SQ compared to say a good NAS (i use QNAP TS251+ with a GISO GB)?

2) more me wondering how melco would fare say against the new uniti core OR the innous Zenith Mk.II set up ?

anyhow interested in peoples experiences with it in streaming setup......