Are phantoms/dialog reliable now?

[Plainview]

Rock solid for me now.
Plays solidly over wifi or streaming Tidal with Spark for hours every day, zero drop outs.

Unfortunately

Can't confirm ... Frequent drop and disconnection from Network...

Now considering to have several Pi 3 with hifiberry and use Roon for group play...

I wonder does your setup of 5 Phantoms cause the Dialog to struggle more....
considering its a hot plate trying to deal with 2 Phantoms, I can imagine 5 is a major struggle!