For this most part this thing is a weak substitute for the six-year-old DSR6000 it replaced (just my opinion, which I'm not going to defend in bullet-list form, since it's the whole experience we're talking about here). But I have found one thing that I was impressed by. All along I've been disappointed by DTiVo backward frame advance. Not that it's a feature I use a lot, but when I do it's quite annoying. I probably can't describe it completely, but if you've seen it you know. It basically just jumps way back when compared with forward frame advance. It's always been explained (to my satisfaction) as "just the way MPEG video works". Something about having to go back to the most recent complete frame (I-frame), skipping over all the deltas that got you from that picture to just 1/30th of a second (or whatever) ago. Alas, the R15 seems to have true backward frame advance. It must be supported in the hardware they're using.