When listening to early Phish shows, its exciting to hear these songs in their infancy. Musically, they're tight, fast, and technical. Its always the vocals that somehow fall short. I could never really put my finger on exactally what is wrong vocalls, but @waxbanks said it best. "the problem is that they sing the entire show out of the sides of their mouths, as it were. Most of the lyrics here are stupid or silly, the musicians know it, and - crucially - they're compelled to apologize, in a way, by ironizing or parodying the performance."
That being said, this is one of my favorite 80's era performances. definitely worth checking out.
There are dogs barking throughout most of the show. Trey made reference to this at the 7/5/13 show at SPAC after spotting Ian in the crowd, and saying "have you heard the tape with the dogs barking? That was at Ian's"
The Harpua is also available on LiveBait 5 (a Phish festival greatest hits!)