Originally written as the slow movement of the Waldstein Sonata but later removed, this Rondo is celebrated for its graceful melody and balanced classical structure. It represents Beethoven's middle-period lyricism before the more explosive works that followed.
Focus on the subtle gradations of touch during the returns of the main theme.
Comparable difficulty and character — good candidates for what to learn next.
Andante favori (WoO 57) is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 8.
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 Andante favori (WoO 57) lasts about 9 minutes.
Andante favori (WoO 57) 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 12 Variations on 'Ein Mädchen oder Weibchen' by Ludwig van Beethoven, 12 Variations on the Russian Dance from the Ballet 'Das Waldmädchen' WoO 71 by Ludwig van Beethoven, 12 Variations on the Russian Dance from 'Das Waldmädchen' WoO 71 by Ludwig van Beethoven — see the full similar-pieces list on this page.