PS Audio Perfect Wave DAC without the transport

I am eagerly awaiting release of the bridge and lens and plan to get the whole turnkey PS Audio music server package once it comes out. I was wondering if it is worthwile to get the DAC earlier and use it with my digital transport (using Marantz UD9004). All I read about is the PS Audio DACs performance when used with the PWT. Is anyone using just the DAC with other transport over S/DIF and how good is it? I am currently using the Xtreme DAC card in my Theta casablanca III.