I am honestly not sure why Sony seems to be halting distribution of this, but if you can get your hands on one soon - Do It!
Having been gaming in the PC and Console space for many years, I have seen peripherals of varying quality come and go. Some, like Turtle Beach headsets and audio have become staples, and a "golden standard" for some folks. My opinion is that this is one of the rare cases where, beyond original controllers, a 1st party release truly justifies its price, and competes with 3rd party peripherals.
-Build quality; Not perfect, but well thought out. Controls are intuitive, and easy to learn. And the foldable headband both works, and looks tasteful. Very little sound leakage through the ear cups.
-Audio; Again, not perfect out of the box, but definitely sharp, and not unnecessarily heavy in bass (unless you want it to be. There's a second position to the ON switch for bass boost mode). The PS4 app can also accommodate custom equalizers, or those created by developers for specific games.
-Versatile; This works well in wireless mode (NOT BLUETOOTH - requires a USB dongle) for PS4, PS3, PC. And for anything else, you can use the included, or your own, standard audio cable. It did fine with FaceTime on an iPad too.
-Build quality; Yes, I said this was a strength, but it is not perfect. I have a few more expensive headphone sets (Shure, InCase, etc) that are certainly more solid, but if I'm being nitpicky, I would have preferred a slightly more oval shape to the ear cups for a better seal.
-Wireless; THIS IS NOT BLUETOOTH! And why not, I'll probably never know. It requires a silly dongle, that sticks out the front of my beautiful, glacier white PS4. That being said, the sound quality I have experienced is better than most Bluetooth, save for anything with aptX, and range has never been an issue. I can nearly walk the entire house and still maintain signal. But why no Bluetooth, so I can use this with a phone, iPod, etc.?!?
-Battery life; This is NOT a huge deal! Just as another nipicking instance (I'm really reaching to find negatives here), the battery could have been a little better, but I can still easily get a few days of heavy use before having to plug in.
Still can't figure out why Sony is making it so hard to find these... But I would easily recommend them over the lesser Sony Silver wired headset, and most of the recent Turtle Beach models, if you want a great fit, potentially great sound, and good versatility. Highly recommended!