The first album of the group was the self-titled "Buffalo Springfield" in 1966. It was originally released in April but did not produce much of a commercial stir.  Many (including the band themselves) believe this failure stems from the muted production not reflecting the raw energy of their live performances which was their strength at the time.  The album did better in re-release in October when the popular song "For What It's Worth" was added.  Despite an early lack of sales, however, most people looking back recognize the album as quite groundbreaking in its blending of folk, rock, country, and other elements.  The album is full of solid-song writing both in lyrics and melody---Stills and Young showcase some of their best tunes.  Harmonies are essential to the album but Furay's smooth voice also really carries many of Young's songs to a melodic level that they would not have otherwise had.  For me, one of the larger problems of the album is the flow of the tracks.  The standout song "For What It's Worth" was added later and the next few songs do not flow naturally from it.  The songs styles continue to alternate throughout the album and many of the better songs get lost in the end.