Hand Independence
The most important detail to consider when practicing this piece is that the jumps in the left hand feel free, unpanicked, and well-oiled. The left hand should not move in choppy, jagged motions during its travels. Upon arrival on the chord, take care that the left wrist does not tense up when looking for the notes.
This piece is relatively short and repetitive, so I recommend learning it in its entirety. You can find the rest of its tutorial parts here.