VERY well played indeed.
One thing is sure, I'll never play it even close to that well.
But I do prefer to hear it played at a slightly slower tempo.
My sheet music states Adagio sostenuto "sustained".
Most tutorials I have used to learn to play the first movement,clock in at around 6-7 minutes. And at that tempo I feel I get enough time to really saviour some of the most amazing chords.
And to me Adagio means slow.
Why would he add sostenuto to the Adagio if he didn´t want it played sostenuto?
But many other great pianists like Barenboim also play at a similar faster tempo once the March theme begins.
But Beethoven also wrote Marcia funebre for his Eroica and that's a very slow March.
My guess is both from listening and playing the first movement of the Moonlight that he had an almost similar tempo in mind as for the Eroica?
And in spite of a imho, painfully slow Appassionata recording ,Glenn Gould played the Moonlight way too fast imho.
But I am happy to have bookmarked his superslow Appassionata ,very helpful when learning.
GG's Moonlight no thanks.
Levit's yes indeed.
Cheers CC