These are great. So much more comfortable than the original pads ...
585763
These are great. So much more comfortable than the original pads in our helmets. Only complaint is that they are huge and a little difficult to get into the helmet.
2533958
Love these pads. They look great and are super comfortable.
3353842
These feel great, very comfortable.  They were fairly easy to assemble to my Sony MDR-V6's. They're a little bigger than the original earpads. I don't notice a big sound difference. I like them and recommend them
874579
I would give them 5 stars but for the following:  1) they do not feel like the original pads (close but not exactly) and 2) they didn't fit perfectly.  I think they were just a little bit larger than the original.  Having said that, they are still comfy and they still clicked into place.  I had to enlist the help of a butter knife to poke the ridges in but was able to install them pretty quick.  These are perfectly suitable replacements without the price.  I have a Quite Comfort 15 set and it worked just fine.
1097734
At first I was a little hesitant as there are three different pads  available  on Amazon, and I was unsure if this was due to there being  different densities of foam.  I can tell you The density of this foam was much better than the OEM pad.  Additionally and while not mentioned in the product description; it was nice to find there is a mesh fabric on the bottom side to help stop your metal frame from cutting into the pad as happens with the OEM.  Also it isn't that bad to replace the pad without removing the seat.  The hardest part is getting to the plastic clips that hold the existing cloth Fabric in place but once you get them off you are home free.  To remove the seat would have created a lot more work than necessary.
381358
These are very comfortable. Cushy, but in that quality, memory-foam way. They don't get excessively warm, unlike the original m50x pleather pads. These are also perfect if you find the pressure on your ears causes discomfort after long periods of listening, as they are very spacious. Only complaint is how difficult they are to get on. Took me a good 20 minutes of fiddling to swap them in. I had the best success starting at the top of the ear cup and inserting the flange, holding that spot in place, then pulling each consecutive stretch of flange into the slot around the cup in ~1" increments. Meanwhile, I wrapped the "holding" hand further around the cup to pin the areas already inserted and prevent them from slipping out.
3056768
These aftermarket pads are GREAT! If you sport a shaved head, they are better than the originals. Thicker foam. Unlike the originals, these pads look like a different foam that won't turn into an inky glue when repetitively sweating on them. It comes with replacement Velcro but I didn't need them as my old Velcro was still good.
2255792
Replaced the pads on a pair of Philips SHP9500s with these and they are much more comfortable now and my ears can detect little if any difference in sound. I did completely remove the old glued-on pads and had to stretch these to gradually get them onto the headphones but with a bit of patience it is a simple task.
1472255
These Gel Pads are totally more comfortable then the stock pads. And I thought they were good. Most definitely would recommend these to other people with Peltor muffs.
2644254
These truly are great! Here I was, combing Amazon for replacement headphones because the pads on my Bose AE2 had more-or-less completely fallen apart, and I stumbled on a set of replacement pads. After a complete pivot, I found these and I'm glad I did! I can now wear my headphones again for hours without exposed foam irritating my ears.

Pros:
EASY install
Seemingly identical material to the original pads
Comfortable

Cons:
None!
2311339
After some months using the stock pads for Sony's MDR-7506 for many hours a day I've started seeing the foam inside. After a quick search I found these Beyerdynamic pads.

The installation is not so easy as it sounds, but after a little struggle everything fits well together. The foam is firmer than the original, but it softens during the first week of use.

One thing that I've noted (And you probably read in other reviews) is the boost in the bass side, without overpowering it. The fabric is also more breathable (This is a must if you live in hot climates)  and blocks outside sounds better than stock pads.

Overall these pads are a great substitute to the originals, they are also more durable and will last many years without tearing or those black flakes not unheard of the Sony pads.
1039972
Very good padding, better than the original headphones. I was ready to order another headphones because it was impossible to use it without the padding, and I am glad I didn't. A bit pricey for 2 pieces of foam, but it does fit quite well. I used it for Ableplanet headphones from Costco.
2304857
Excellent replacements for gross, flaky Sony ear pads. Slip on with just a little patience. Sound and comfort much improved.
2878397
I bought these pads to replace the ones on my DT770 Pros that are almost 20 years old. They are the most comfortable ear pads I have worn still. I just love them. Just two things to note:

1) These are for the 770. I can't comment on the DT880, but I owned the DT990 Pros as well, and they have a different profile pad.
2) The plastic/vinyl trim that folds around the headphone rim can be a little stiff. Simply give a little heat from a hair dryer and it will soften up pronto, making it much easier to stretch and install.
4891172
Great, deep and comfy pads! A bargain for the money.
4495685
Works great. Don't like that there are no replacement pads that have velcro like the originals. -1 star for that ...
4791534
Work great, much less sound and dust than the stock pads. What else is there to say?