Hi
@Rockwell75,
I might had already said this to you but the PR is definitely good value DAP & certainly very enjoyable to use.
Subjectively & personally, it is definitely sonically more enjoyable than the ZX300.
Cowon tends to be pretty foolproof UI as it is basically a clone across all their DAPs with variations.
PR is more Reference Sound (Closer to Balanced Sound with no emphasis in any frequency range) compared to something like both PD & PD2 sonically though depending on your mileage on how you hear things, using JetEffects won't yield much difference from not using JetEffects but still nice to use.
Personally & subjectively, I also like the pretty much black background on the PR over both the PDs but in the long term, subjective once again, sound has more impact for me on the PDs.
Hope you enjoy your PR when it finally arrives, I doubt you will be disappointed...
Just as a general statement, it would be interesting if a revision of the PR ever came out with certain added futures but time will tell.
Hope you have a great day !