I for one greatly enjoy the z1r I agree with beauwolf when it comes to closed cans these are really a solid pair. I think the price is its biggest con. When tyll said that sony should really listen to there headphones I lol'd I think the big picture here was that sony was trying to do something different and they did.
I think they're outstanding, actually. Price could be better, considering they are not total all-rounders (few headphones are, but the Z1R are not something you want to use with excessively bassy tracks).
Right now I'm listening to Doug MacLeod's "There's a time" and the sense of space, the overall clarity and sharpness you get on the guitar (without any excessive brightness) is just perfect... Truly well recorded album.
An Utopia wouldn't get you this nice meaty full roomy feeling, an HD800S wouldn't get you the fun, foot-tappin' bass, full, impacting without being woolly or killing lower mids and vocals. It's just good.
Is it good with every album I load? Nope. Is it bad as you'd deduct from Tyll's review? To my opinion, no, but I do respect him for being so blunt about a model he disliked - perhaps excessively, IMHO. But who knows. He loved the HD800 many years ago and later considered a sharp, thin ear-razor, so tastes change.
PS. Anyone using the iDSD Black Label, try using the 3D analog circuit in albums that are too naturally bass and narrow. Might surprise you. I don't use it often, but when it works, it works great. (XBass+ is ON all the time with the 800/800S tho).
The truth is a lot of the music I listen to are modern j-pop songs which are FAR from being mastered nicely, or even good, and the issue with a lot of the TOTL which goes for ultra-sharp resolution is that they are simply TOO revealing for j-pop songs that it reveals the faults/aliasing due to loudness/whatever else mistakes the engineer made, and that makes me hate the music I listen to, which I don't think should be the goal of enjoying music.
I suspect J-Pop had quite some weight in the tuning of the Z1R. I don't listen to it, but there are equivalent masterings in other types sometimes.
I don't think the Z1R are lacking any resolution. They don't feel ultra-sharp, but the detail is there. When I first got them I kept feeling I was losing detail in a track, because they're just warmer, silkier and overall sound is fuller (not just bass), so I compared A:B with the HD800, HD800S and MDR-CD3000 (which is a biocell treble/brightness/detail monster).
In every time, I noticed I could hear the same resolution and detail with the Z1R. It was still there, just smoothed out, without the grain of the CD3000 or the occasional sibilance of the 800 (and even 800S). Play some ultra bassy, warm/muffled music with them, and they won't sound nice.
Play some Jordi Savall's "La Folia" (awesome recording in detail and soundstage) side by side with an unmodded HD800 and you'll see the Z1R is not losing any detail. (Although in this particular case I prefer the 800 due to the extra sense of space and that zing it adds to string instruments).