I can understand why Grateful Dead is known less for their studio albums - the mix on some of these tracks is a letdown. Percussion parts too forward, guitars buried in the background where they can barely be detected. The vocal harmonies are rough at parts - phrases not ending crisply, not nailing certain parts, etc. Admittedly, these same warts likely add to the overall human charm. Despite my gripes, this is an amazingly strong collection of songs - just a happy listen from start to finish.