This has 6 extra tracks which were recorded at the same time as the original 12, so this isn't an exact duplicate of RCA's first gold record or the first rock 'n roll album to hit #1 on the charts.
As such, I consider this a landmark album along with the Sun Sessions, Memories: The '68 Comeback Special, That's The Way It Is, and 30 #1 Hits. Each of these captures a very important side of Elvis.
This album is the still raw Elvis, maybe a bit more polished than during his Sun days, and more into a mixture of R&B, country, and rock than in his basically rockabilly days, although some of those are here too.
Some of his best such as "Heartbreak Hotel", "Blue Suede Shoes", "Tutti Frutti", "Shake Rattle And Roll", "I Got A Woman", and "Money Money" are here.
If you don't have any Elvis at all, I recommend Elvis 30 #1 Hits first, but follow that one up with this great CD.