I have the full version of Breverb that I bought as an upgradefrom the version in Sonar. As far as I can tell it has no Pro Channel version. I have Breverb2 as a PC option. But it has less adjustable parameters than the VST version.
They are close and the PC version can do an excellent job. But for fine tuning/further adjustments you will need the full vst version.
I would assume (cautiously) that ReMatrix would be the same. : )
HTH