It's a good trio, contrast between Solo Piano and Violin/Cello Duo and Full Trio throughout the piece, contrast of octaves in the piano part, and many other things. The only thing I really question about it is the bass clef passage in measures 50-51. I understand that it's both a harmonic sequence and an application of that octave contrast I mentioned. But could it actually be played in the right hand? That's what I'm questioning, especially measure 51, which has 2 notes in a row that according to the notation are supposed to be played by both hands on the same key, G and Eb. The Ab on beat 4 of measure 50 is also the same note in both hands.
I mean, I've seen passages with notes notated like that in piano repertoire, both originals and transcriptions, but only occasionally. More commonly, when both hands are in the bass staff, I see one of these 3 things happening:
Left hand in Great Octave while Right hand is in Small Octave or even sometime Left hand in Contra Octave while Right hand is in Great Octave ex. Moonlight Sonata First Movement, In The Hall of the Mountain King
Hands intertwined, like for example the left hand playing an octave chord and the right hand playing melody within that chord, An example of this intertwined hands, though not in bass clef, is a bit in the Fugue part of Toccata and Fugue in D minor
Full on hand crossing, though usually, this hand crossing situation has the left hand in the Treble Clef, but low enough that it could be notated in bass clef if the composer wanted to without any real issues ex. Pathetique Sonata 2nd theme, Piano Concerto no. 21 Second Movement Piano Solo