Although there are a number of very fine performances of this symphony in good stereo sound, this historic interpretation, given in the shadow of the Nazi takeover of Austria that everyone present knew was just about to occur, has a headlong urgency and intensity that, in my opinion, no subsequent recording has fully matched. Walter phrases with a natural elasticity of rubato, especially in the opening andante commodo movement, that highlights the marked fluctuations of tension within the music and projects its expressive rhetoric into sharper relief. Moreover, the prewar Vienna Philharmonic further enhances these qualities with its distinctive way of leaning into phrases that, in my opinion, imparts to them added profile and force. There are, admittedly, imprecisions of ensemble here and there, but not to the degree that would compromise the power of the performance. My only significant reservation is that the last movement is taken a little bit too quickly to be a true adagio (for what it is worth, I have heard that Walter later complained that the recording team made him play it faster than he wanted to).
Finally, I would recommend getting this particular remastering because its sound is significantly more vivid than that of the earlier EMI edition.