Just started a new topic relating to it. I may end up finishing the piece by fall. Kassa is right. The beginning is one of the most daunting beginnings to a piano concerto. My professor told me a story about one of her male colleagues in grad school.
She said he was GOOD, technically superior to herself. He played very demanding repertoire and was a very confident player (a bit over confident). Anyway, he stood up on stage and sat down to begin the Liszt concerto and Proceeded to *** up every octave on the first page.
I think many people underestimate how multidimensional this concerto is and how Liszt uses that innovative piano writing to shape those themes. I would start learning the outer sections as they are the most difficult and then work your way in. Never stop practicing those octaves. They suck big time.