I have a new P4 that I had planned on selling but never got around to. Now they are going for 475 or so. So to upgrade to a Roamio is about a $100 difference so I am debating sticking with my P4. I understand the differences as per http://www.pcmag.com/article2/0,2817,2423377,00.asp However, I am wondering if the Mini experience is that much different as of now. Is the speed pretty much the same? Other than DTA, is there any real difference of a Mini being used with a P4 than with a 4 tuner Roamio? Oh yea, I wasn't sure. Mini has DIAL now w/roamio, is this with a Mini w/ P4 as well?