The opening in these earpads are smaller than the stock ones, so you may find them less uncomfortable to wear for longer periods.
More problematic though is that I could not get the earpads to completely attach to the headphones. One of the clips would only engage partway, leaving an uneven & decent sized gap between the headphones and earpads.
Also, it's also much harder to fit the headphones into their case. They do fit after some squeezing, but I do worry about the longevity of these earcups given that they're under so much compression when the case is closed.