Ensiferum is a metalband from Findland, who plays what is often catogrized as Viking Metal. "Unsung Heroes" is their 6th album with ups and downs.
The first 4 tracks (In My Sword I trust, Unsung Heroes, Burning Leaves and Celestial Bond) are the best, but with a strong start the quality unfortunately falls abit. Some of the tracks are too mediacore, forgetting the memorable (and defining) sounds we got from their previous work like Warrior's Quest, Iron, Battle Song, and Token of Time. The last track is a cover of Gipsy Kings - Bamboleo. The song is definitely a change in tune from the original, but it does not fit very well into a otherwise great album.
The Limited Edition of "Unsung Heroes" also includes a DVD with a documentary about creating the album.
Overall "Unsung Hero" IS a great addition in their discography. If you are a Ensiferum fan this album is definitely recommended, if you're new to the band,then I would look out for their previous albums like "Victory Songs" and "Iron" first.