The music came out great, if a little quiet and with a slightly worse hiss. It removes slowdown too, and “The Day Will Come” is now used where it’s supposed to, so I can’t give a definite “no” to this hack. But it’s not a perfect solution if you feel the vanilla ROM sounded terrible. Because all slowdown is removed, the opening music is desynced with the visuals no matter which variant of this hack you use. This is minor though, and the orchestral variant syncs with the visuals a bit better.

The main problem I have with this hack is that half of the sound effects I’ve heard were actually WORSENED. King Tycoon’s wind drake’s cries fall apart mid-way through, one of the earthquake sounds is much louder than it should be, the “normal enemy defeated” sound effect ended up sounding bit-crushed, and every single ambience sound has lost their reverb. Granted, these are obviously not ALL the sound effects in the game, and as of this writing I’ve only gotten as far as the first visit to Carwen. These results were from the mGBA emulator, so these issues will likely be present on real hardware.

If it wasn’t for the removed slowdown, I’d say don’t bother. If you didn’t like the slowdown and/or felt the vanilla ROM’s music sounded bad, AND you can stomach the botched sound effects, then this hack is for you.