The MSA Supreme Pro-X muffs are amazing, by the way.
I have the same muffs, and for the price don't have the same review.
Muffs can only be so good, but I do have issues. Quick review of my thoughts after having them for a couple years with 1000's of rounds shot:
1) Fit is good. Comfortable with gel cups. Don't notice weight, etc compared to other muffs. They are warm still, can't get around that, but the flip side is they keep your ears warm in the winter or cooler days. I'd say the gel is better than alternative cushions, but not exceptionally better. The gel does seal well around hats and glasses. No complaints on fit. I like that I can easily flip one or both ears up when not needed, like walking between stations at sporting clay ranges, or killing time at competitions, etc.
2) Battery life is ok. Not exceptional but adequate. I can tell by the sound in the muffs when they are getting low. AA's are accessible and reasonably priced.
3) Durability. Seems good. I've used them in the rain, I walk through the bush with them when hunting upland, etc. Still look new, other than the leather headband showing some weathering as you would expect. Very minor wear overall. I can't see them being damaged unless you do something silly like drive over them.
4) My complaint? The sound. I've had cheap muffs before where the volume controlled the localized sound as you would think most should do. You turn up the volume, the voices get louder. Easier to hear and allow double protection with foam plugs. On the MSA's, the volume mostly controls BACKGROUND noise. If you want to get really frustrated with them, shoot by trees with rustling leaves, or walking for pheasants for miles on end listening to loud grass making noise while trying to hear commands and conversations with guys 30-40 yards away. Extreme frustration where I often just turn them off.
5) They are bad in the wind. I wish they made wind blocking foam covers, but they don't. I'll fab something up, but they are TERRIBLE if windy. I just shut them off again. Not something you want to do with nearly, if not the most expensive muffs one can buy.
I thought these muffs were a one off. The seller/importer let me swing by and try additional headphones and they all were quite similar. I made my complaints known and he said some people like them for that reason. Hunters, etc. I'll admit, I used them for hunting on perfectly calm days in the bush and you can listen for the birds. That's great, but if it's windy you are left with no option other than to turn them off unless you want to get fatigued by constant roaring in your ear.
This winter I'll try some different foam covers to help reduce wind noise and improve voice volume vs background noise. I hope I can find an improvement. It's an investment you don't want to give up on, but at the same time I'd think most users would have the same complaints.
Alternative options? 3M Tactical, at half the price.