"Melco are apparently working on their own control app"
Within past couple weeks I've been in touch with Melco/Buffalo and there will be no Melco control app in foreseeable future and perhaps not at all - so if that matters to you probably good to look at Aurender, Lumin or Bryston devices. These apps can be expensive to develop and not every manufacturer is ready to spent the resources in time/money if they cannot expect to recover the investment through sales. The Lumin D1, the Aurender X100 or the latest Bryston USB player may be good choices for you.
Within past couple weeks I've been in touch with Melco/Buffalo and there will be no Melco control app in foreseeable future and perhaps not at all - so if that matters to you probably good to look at Aurender, Lumin or Bryston devices. These apps can be expensive to develop and not every manufacturer is ready to spent the resources in time/money if they cannot expect to recover the investment through sales. The Lumin D1, the Aurender X100 or the latest Bryston USB player may be good choices for you.