All others, this plate will not bring too much - the oblique early songs from "Bleach" missing as completely as the less harmonious later songs, but no less awesome than the known hits. The full range of Nirvana you do not get to hear, but only the radio-friendly songs.
Where are eg early songs like "Blew" or "School" of the "Bleach"? Also, at least one of the very early songs, which can be found on the second half of "Incesticide", one might have to pack. Songs like "Aneurysm," "Drain You", "Something in the Way" and "Milk It" could also deserves a Best of place. A rarity as "Sappy" could round out the CD.
Collectors need to weigh up whether it is for only one previously unreleased song ("You Know You're Right") as well as two new versions of popular songs ("Been a Son" is a 'real' studio version before and not as a BBC radio Recording on such "Incesticide" and "Pennyroyal Tea" is an unreleased remix) worth to buy the disk.
"Nirvana" is simply nothing more and nothing less than a solid "Greatest Hits" (but certainly not a "best of", this selection is far too much in the direction of "radio-friendly").