This is a very easy and surprinsingly comfortable technical figuration, it's really not that bad. Chopin used that kind of thing in the third movement of his 2nd piano concerto, and Liszt uses it in the concerto pathetique too.
it's a wonderful figuration. It's also in the second to last page of the alkan grande sonate, movement 1. really not as difficult as it sounds...
The concerto pathetique is basically the Grande Concert Solo for two piano's. But this is definitely for 1 piano.