Definitely the best Walker Brothers compilation available, if only for the number of tracks on it. Fortunately, the quality of the songs and the performances are also as good as you could wish, so it's almost perfect.
Almost...with one strange exception. The version of "Sun ain't gonna shine" is not what you'd want or expect; the lead vocal is so far back in the mix that it's almost buried under the orchestral backing. It sounds like Scott Walker was in another building when it was being recorded, you can hardly hear him. It's definitely not what it should be, but it's the only track on the double CD which suffers from the problem - on every other song, the production and mixing is perfect. Technically, someone seems to have a dropped a clanger when "Sun ain't gonna shine" was mastered for this release.
So their best song (for me) is spoiled by a very poor balance of voice/orchestra. It's annoying, but you can learn to live with it. This is a great compilation - but you'll want to buy something else for a decent version of "Sun ain't gonna shine".