I think it's safe to say they were "trippy" throughout their entire career. I just so happen to prefer the more acoustic based stuff. For fans of Workingman's Dead, American Beauty and Garcia's work with the New Riders of the Purple Sage and Old and In the Way, this album is also a great place to start:
When this was released on CD it was missing one track from the vinyl edition ("Oh Babe It Ain't No Lie") but when it was re-released as part of the reissue campaign for the Beyond Description (1973-1989) box set in 2004 that cut was restored to the tracklisting along with several bonus cuts that came from the same shows as the original album.