I was considering that card when it was first released, but I emailed Creative to ask a few questions about recording and whether it offered direct monitoring and the tech guy that replied basically said that it was aimed more at playback than recording. I ended up going with an RME HDSPe AIO, which was more than twice the price, but I have no regrets.
Both have very good signal-to-noise ratio (116 vs 124dB). The main difference is that the op-amps are user replaceable on the ZXR. They also use different DACs and headphone amps.
I take back the previous post about recording as both cards seem to have identical I/O.