I have the Z7's. The construction / quality of them is surprisingly high....very nice. I like that they're closed as well as my other cans are open, other than the TH900 now. Value for money, the Sony's are a great deal IMO. They super nice to look at and handle...not gaudy but tasteful and very solid. A lot less delicate than the TH900's as an example.
As for the sound, the Fostex are markedly better IMO. So they should be for the cost. That's my two bits.
I very much agree, in fact I liked them well enough I knew I could sell my 560s to help pay for my DAC upgrade. I'm quite confident the TH900 will be better, but the Z7s are nothing to scoff at and yes, I really think they are a sharp looking, well-made headphone that sounds excellent.