Johann Baptist Cramer's Op. 41 sonatas are exemplary works from the Classical period, characterized by their fluent melodic writing and well-structured forms. They are valued for their balance of musical substance and pianistic elegance.
Focus on precise fingerwork and consistent articulation throughout the fast movements.
3 Piano Sonatas (Op.41) is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 7.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 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 3 Piano Sonatas (Op.41) lasts about 17 minutes.
3 Piano Sonatas (Op.41) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.