This is a good introduction to Waylon's music but I would have expected any collection of his RCA music titled Essential to include Luckenbach Texas - and that's only the most obvious omission among several. Compare this compilation with the more recent single CD (Ultimate), the American double CD (RCA country legends) or the Australian triple CD (Legendary) - this last compilation was issued in the UK titled Legends.
Once you get past the shock of some obvious omissions, look on the bright side - this includes some wonderful tracks instead of the obvious ones, especially a couple of great duets with Jessi Colter (his wife) - Storms never last and the medley, Wild side of life / It wasn't God who made honky tonk angels. Also included are Just to satisfy you (a duet with Willie Nelson that is also on Ultimate but not on RCA country legends) and Wurlitzer prize.
Even on this collection, some of Waylon's essential tracks are included such as Only Daddy that'll walk the line, Good hearted woman, Amanda, Are you sure Hank done it this way and Theme from the Dukes of Hazzard.
So this is a great collection in its own way, but other collections are stronger - look at those before deciding that this is the one you really want.