D440 or D1000 for Sopra 2

[burgundy]

I had a D200 years ago but was frustrated with Devialet Air. 
Finally sold it and went with something else.

Is Devialet Air better these days? I use Roon. Either Wifi or ethernet is fine, but Roon is important for me.

Also, which is a better fit for the Sopra 2?  
D440 or D1000?  i have an opportunity to update a set of D-premier to D1000, so the price difference is a few thousands between D440 and d1000 for me. Is it worth spending the extra?

thanks