I'm not big fan of piano versions of any of the various Mahler song cycles, simply because he was such a fabulous orchestrator, and his orchestrations do such a great job of "tone painting" for the texts involved. That's just me.
I'm not big fan of applying pianos to everything, like a trowl. For the most part, modern pianos are necessary evil, and sound much better utilized by good jazz players. That's just me.