Oh yes, it's definitely considered one of the "classic" versions of DLvdE.
However, I'm not a big fan of Klemperer's Mahler -- so it's never really rang my bell.
But that's just me. You owe it to yourself to see if it works for you.
This again:
Multiple is an incredible album, IMO.
I was pleased to see that Craft has just reissued it on vinyl in their "Jazz Dispensary" series. It's an album that deserves much wider exposure, I think.