Fessy was a noted publisher and educator who wrote numerous instructional and salon pieces for the piano. His Boléro is accessible to intermediate students, focusing on the rhythmic pulse rather than excessive technical display.
Practice achieving a consistent 'bolero' beat without letting the left hand overpower the melody.
Comparable difficulty and character — good candidates for what to learn next.
Boléro is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 4.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 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 Boléro lasts about 3 minutes.
Boléro 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 Canción de Margarita by Louis Gobbaerts, Bonbonnière musicale by Ignaz Moscheles, Berceuse by Charles Samuel Bovy-Lysberg — see the full similar-pieces list on this page.