I know that David wasn't too crazy about this recording either, but I think it's quite recommendable. The VPO seem hugely committed to the work, and the sound quality is far better than usual for a recording that comes out of Vienna's little shoebox concert hall, the Musikverein. Harding is a bit of a Rattle clone; more closely resembling Rattle's latter Berlin recording of M10. He takes all the material between the fourth movement's final expressionistic outburst, and the start of the fifth movement, quite slowly; just like Rattle/BPO. He also links the last two movements with a single bass drum stroke. And speaking of which, the muted drum (bass drum) doesn't blow you out of the room either. I do agree with David's contention that the big climaxes in the two outer movements are a bit underwhelming - they could have been done better. But neither are they terrible or destructive to the overall "interpretation".
I also agree that Harding is a tad too fast with the middle movement, "Purgatorio". But then again, so is Gielen, and I like Harding's first scherzo much more than Gielen's (Gielen's second scherzo is outstanding, however). For me, Ormandy and Noseda (Chandos) peg the Purgatorio just right.
Well, I could go on and on, but the bottom line is this: you don't need to run out and add this Harding M10 to your collection unless you're an M10 lover (I am), and feel a need to hear pretty much every one that comes along (I do). Also, if like you Rattle/BPO M10, but are rather frustrated with the dry and constricted sound (it is available on a DVD-A), you just might want to trade it for this one. No problems here.