This is a characteristic salon-style work of the mid-19th century that combines a dramatic ballade style with the intimate qualities of a romance. It demonstrates typical Romantic-era harmonic progressions and expressive phrasing.
The main challenge is balancing the dramatic swells of the ballade with the delicate intimacy required for the romance section.
Comparable difficulty and character — good candidates for what to learn next.
Ballade and Romanze (Op.13) 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 Ballade and Romanze (Op.13) lasts about 7 minutes.
Ballade and Romanze (Op.13) 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 Ballade and Romanze by D.G. Becker, Liebestraum No. 3 in A-flat major by Franz Liszt, 16 Waltzes by Johannes Brahms — see the full similar-pieces list on this page.