Pros: Excellent isolation. Ive used these for shooting earplugs.
Cons: Could be uncomfortable for some. Bass heavy.
Theres not a ton to say. They work pretty good, isolate ~30 dB if i recall and if you have the proper tips to fit your ears, youll be able to wear them for hours, which is good if youre using them like I was, running a floor grinding machine for 16 hours a day. Just clean them once in a while, or they'll start to look like candles.