It's really close for me. I listened to the accurate version, then the enhanced one, and my first thought was "oh, yeah, this sounds better."

Then I listened to the accurate version again, and thought "wait, never mind, this one sounds better."

After going back and forth a few times, I think I still agree the original/accurate one is better, but it's pretty close. I really encourage people to listen for themselves.

For what it's worth, I have little to no personal nostalgia for the Game Boy Advance.