I bought this device for XLR in, RCA out. Going by specifications it should be able to do this just fine, but it actually introduced noise rather than eliminate it. And not just a little, really loud too. Fiddled around a bit but found no solution. Balanced to SE is not this device's strong point...
For other set-ups it might work very well though. Just sharing my experience with this particular device. Too bad it didn't work too, competitor's transformers are MUCH more expensive!