I've been enjoyiing the set since #91 hit my door a week ago or so.
It's not essential, it's commercial swing music more than anything like serious jazz, it has charm and it is very well recorded and remastered. (Malcolm Addey doing his usual excellent job, though in this and many of his Mosaic works, we should also be thanking and lauding the TRANSFER engineers). I have had the tracks with T-Bone Walker a looooonnnnngggg time, and the Ella Mae Morse selections for some time (I really dig the Bear Family set, and the material here sounds better here!) So I knew I would dig this.
The new Select I have resisted so far is the Johnny Richards; I have a lot of the material and don't play it much, it doesn't really send me.