I give Liszt's Dante Symphony a "very good" vote, and that "very good" is closer to "excellent" than to "good".
Some while back I posted my observations on this symphony. Here are those thoughts, again, with just a touch of editing:
I came to this Liszt work with ears more of a literary scholar than a music scholar. I recall reading so many reviews of how awful this symphony was. But I've come to believe that the reviews were written mostly by non-literary types who had never read the Dante Comedia. Liszt, not your "average" composer on any day, was quite a literary maven himself, and this symphony (along with the Dante Sonata) reveals the true depths of the composer's understanding of the Medieval masterpiece.
That first movement is a study in frustration, beautifully orchestrated. I can somewhat imagine a musician's discomfort with the piece, which consists of a series of unresolved cadences. Musically trained ears perhaps desire some sort of tonic resolution. Liszt gives us build up after build up, the music always seemingly leading to the end, the resolving chord, but never achieving it. This Hellish movement captures exactly the dissatisfaction of Dante's Inferno, a place where there is only suffering, darkness, and no ray of hope. Not even, in the symphony, hope of a chord resolution.
Other composers have depicted Dante's Hell in music, but I can't say I know of another work (not even Tchaikovsky's fascinatingly windy Francesca di Rimini) that captures the essential experience of the Inferno as does Liszt's symphony.
The second movement of the work is rather static, by musical considerations. Boring, one might say. But that is, again, exactly the experience of Dante's Purgatorio. If there seems an endless "sameness" and but very, very slight musical gains from episode to episode, one again experiences the Dantean soul of the Purgatorio.
Liszt famously refused to attempt to create a Paradiso movement, opting instead for a choral work he had previously composed to end the symphony. I understand his logic -- that a mere man can not possibly create the wondrous, joyful beauty of God's Heaven. But I wish he would have tried. Not that his symphony ending is so bad. It's not. But Dante attempted to sketch in words the awesome magnificence of Heaven. I wish Liszt, a genius of similar mind, would have chosen to interpret Heaven in his medium, music. He did splendidly, after all, with the Hell and Purgatory parts.
Alas ....