I have be Beta testing the Niles 4.6ci PreAmp in my own home and found it to be a great unit. The keypad choices are better than the ZR-4630. You also have the silencer VC that can be incorped into the system. As of today I received the alpha version of the pc interface for programming. VERY NICE & for those of you that have done Itellicontrols you can convert your .lin files to be used in programmin of the 4.6ci. Just for ref. there will not be a pc based software for Gloria as it is intendted to be an entry level piece. Email me with further ?'s if like.