I know it has to be taken seriously, but a huge reaction I see is "omg so many notes in this piece! so fast! therefore it's difficult!". What I'm saying is that people find this piece hard for a silly reason. If someone is saying "it's so fast how do you play that", then they likely haven't even acknowledged the fingering and probably won't make it past measure 10 of the piece. But if you sit and realize "ok, I've got to work out the right hand. Oh look, there is a definite pattern", and then you work through the piece, it clicks nicely.
The leaps are obviously a technical aspect, but it's common at this level of repertoire... the fingering pattern for the right hand is [extremely] repetitive. I know the a minor theme only repeats a couple of time, but it's quite lengthy, and the piece is only 8 pages... the interludes are the toughest spots either because coordinating the leaps is tricky, or because it introduces a new fingering difficulty (again, for example, the left hand passagework on the fourth page).