Buster's Trip is a whimsical modern miniature that uses staccato and quick shifts to portray a sense of movement. It is structurally transparent and idiomatic for the piano.
Mastery of light, crisp staccato is the primary requirement for successful execution.
Comparable difficulty and character — good candidates for what to learn next.
Buster's Trip is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 5.
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 Buster's Trip lasts about 3 minutes.
Buster's Trip 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 in G on 'La Bérgere Célimène' by Wolfgang Amadeus Mozart, Bolero by César Cui, Bolero by César Antonovich Cui — see the full similar-pieces list on this page.