I've owned a number of different headphones and for me, the Sun Ray Pro Gold are by far the most comfortable set I've used. The ear cups are large enough that they cover my entire ear. With other brands I have found that when part of the cup rests against my ear that my ear starts to hurt after a while. That doesn't happen with these.
The only drawback is that they do require a minor amount of maintenance. The ear cuffs are made of a soft leather. I found that after about 6 months of use the leather started to slightly crack. This was mainly my fault though. I had never wiped the sweat off of them after a day of hunting and the salt started to dry out the leather. I also made the mistake of leaving them in my trunk on a summer day when it was well over 100 degrees which caused a bit of cracking as well.
All I do now is wipe them down after each use with a damp towel. After every third use or so I also put a little leather conditioner on them. By doing this the cracks have virtually "healed". The good thing is if the muffs do get damaged or tear, they can be replaced for relatively cheap.
Aside from that issue, the headphones are well made, the wire is sturdy and I have never had any problems regarding their construction. By far my favorite set to use.