Yes, the Scherzo is a bit difficult to sightread, but as you said, there is a lot of repetition.
It goes like:
Fast part A
Fast part B
Fast part A
Fast part B
Fast Part A
Fast part B
Slow part (1 main section that basically repeats 3 times)
Fast part A
Fast part B
Fast part A
Coda
So really, even though the piece is some 10 pages long, you only have to learn 2 or 3 pages of hard stuff, then decide what you want to do to make it different each time it returns. Just make sure that you NEVER EVER practice wrong notes because then obviously you would have the same mistake cropping up all over the piece. Not like I think you'd do that anyways. lol