I had the set. Paid a fortune for it (it was the mega set, not the "regular" special box set edition). Sold it along with the player and over a hundred discs for an even $100 about five years ago. Good discs, too. Collector editions when they were available or, at the very least, the CAV versions.
Best I remember the audio is good. But compared to a DVD the video is, at best, okay. There is added resolution compared to VHS, sure, but the resolution only makes some of the unaddressed FX problems worse. One standout is FX mattes. They were painfully obvious on my higher-end SD TV, I can only imagine how distracting they will be on an HD screen. Even a crummy one. It's nice to see the original versions, but sometimes old is just old.
Brad