This Yank is a big fan of Anita O'Day and collects her recordings. There are probably 20 collections covering her early years, from 1941 to 1953, before she signed with Verve, and this is without question the best of them. (1) It is the most comprehensive, a huge selection, including Gene Krupa, Stan Kenton, and even five radio sides with Nat Cole. (2) The quality of the mastering is very good. (3) And the accompanying booklet is very well written and illustrated and is alone worth the price.
This collection costs more in the USA and from online auction houses. Purchased new from Amazon.uk, it is a genuine bargain.
If you haven't yet discovered this gifted artist, consider also another bargain, the Avid collection Four Classic Albums: Anita Sings the Most/the Lady Is a Tramp/An Evening With Anita O'day/Anita
of Verve albums. See also her Oscar-nominated bio pic: Anita O'Day - The Life Of A Jazz Singer [DVD] [2007