This is just the [Some-Stuffs] 720p release with the audio replaced. [Some-Stuffs] used ffmpeg or Handbrake or something equally bad to encode their AAC audio, and it resulted in noticeable distortion in some places. This release is encoded with QAAC from [#741362](https://nyaa.si/view/741362) / [#779974](https://nyaa.si/view/779974).
There are otherwise no changes to the release from [Some-Stuffs] 720p. I think.
EDIT: Upon further review, [Some-Stuffs] did a bad job of handling the BD audio of episodes 02-08 (even the FLAC version), so [here's a patch](https://mega.nz/#!VVFEXBYI!MokTyTdaZ97SqJJ4mNpL30Di23hYWcBRdqZ2g1idQJQ) that replaces that audio. It was amusing to watch their encoder go through various phases of wrongness before eventually settling on the right way to do things, but not as amusing to see that he didn't go back and fix his mistakes once he'd figured it out.