I have on home demo the APS-1050. I have also been using a PS Audio P300 for a number of years now. The PS Audio seems to alter the tonality of what's connected, compared to off the wall but the APS does it less - a good thing for me. Both lower the noise floor and the APS fan noise is really very insignificant. What I do like about the APS is that it does not get as hot as the PS Audio (lower electricity bills?) and allows the system to 'breathe more easily', but this could be due to the lower power of the P300. My PS Audio has been plagued by reliability problems and though i was looking to upgrade to the P-1000, i think i will end up keeping the APS.
