I sold my Aurender A10 due to the horrendous Aurender app. Also the DAC in it wasn't as good as I was hopping. Not sure what improvements are in the A20 but if it was me and my money I'd go for the DCS their DAC's are very good. DSC uses roon ? that's the way I'd go.
My A10 did MQA as well not sure if Aurender has dropped it in the newer ones though, also not a concern to me either.