I have had a chance to listen to a few movements (only the multichannel mix, so can't speak for the stereo mix, but why bother as QQ'er (though if there is interest I can give it a listen when time permits) ?
Here is my opinion FWIW:
The multichannel mix is fantastic. It is most definitely aggressive, in that your are sitting in the middle of the orchestra, with individual groups of instruments in each speaker. Piano in the center, brass center back & right, xylophone/percussion surround left, ondes martenot in surround right. The acoustics of Grotezaal Concertgebouw are as fine as usual, with the right amount of reverberation. To me, the tone of the instruments suits the music just fine, perhaps a bit on the colder side, with excellent clarity. It seems the other recordings of this that I have also have a similar coolness or brightness to the sound. May be other people who know this piece of music can comment more on it. I wouldn't put any weight into it not being "DSD or high rate PCM", makes no difference to the "tone of the instruments" whatsoever. And, yes the percussion instruments are recorded very well. The bass drum has solid impact and at the same time does not feel unnatural to me (if you like the overall presentation of being in the midst of the orchestra, which I like). This is a big plus for me. I typically avoid recordings with poorly recorded percussion as is.
As fas as sound quaity goes, I would easily rate it a 10, or 5/5 based on whatever scale you choose
. Bottom line is, if you like this music I do not think you will find a better sounding version, certainly not in surround.