A standard example of a 19th-century virtuoso display piece designed to showcase the performer's technique through theme and variation. The writing is highly idiomatic to the piano of the era.
Mastery of voicing within the florid ornamental lines is required for a polished performance.
Comparable difficulty and character — good candidates for what to learn next.
Caprice et Variations is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 7.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Caprice et Variations lasts about 8 minutes.
Caprice et Variations is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include Caprice et Variations by Arthur Kalkbrenner, 'S Wonderful by George Gershwin, Bella Bocca by Emile Waldteufel — see the full similar-pieces list on this page.