Thanks for the links.. I'll look into them. I'm definitely getting a QuickStep (not sure yet if I'll pull the trigger on it now or in a week or two).. but my PCSTEP is certainly not going anywhere. It's simply fantastic. I've used it almost constantly for the last two days. Did some A/B'ing between the amp sections of the PCSTEP & UHA-6S MKII (ODAC used as the mutual DAC for both).. I'll have those thoughts up later.
The PCSTEP's DAC & amp work flawlessly with my Galaxy S3 (via OTG cable), too.. which was the primary reason I got it. The UHA 6S MKII's DAC+amp worked with my S3 as well.. and while the Leckerton portable is a terrific device (arguably my favorite portable until the PCSTEP came along), I prefer the sound of the PCSTEP's DAC+amp with the S3.
I feel it's important to mention how impressive the PCSTEP's built-in DAC is, too. Such a feature is sometimes treated as an afterthought in portable DAC/amp combos. Jan did a really nice job with the implementation and there's a pleasing synergy between the DAC & amp sections. It's limited to 16/48, but that's not an issue for me as much of my music is HQ MP3 (or HQ streaming via my MOG subscription). In the 2SD/QS thread, Jan mentioned he had modified the DAC chip to get markedly better performance out of vs the more standard implementations of it. Even when I'm going portable with my laptop, I've usually resorted to having a separate (portable) DAC and (portable) amp (or a USB-to-SPDIF converter w/ the UHA-6S MKII). With the PCSTEP, I love having a very competent USB DAC & amp in one box.
I'm still amazed by how the PCSTEP can drive my HE-400 with such authority and power. I've got a nice desktop rig not more than a few feet away and I haven't had the slightest of urges to run to it since the PCSTEP arrived. Not saying the PCSTEP is better, just that it's performance is so very captivating. I can't imagine what the QUICKSTEP is capable of.