Wacca straddles the categories of Humanist slab and Contemporary serif, and it also gives handwriting taste especially in those italics.
Its tall x-height enable for them to be extremely visible, and slightly curved strokes on some letters make them pleasant and organic look as a whole.
Italics introduce more cursive strokes all over, so it comes across much organic than regulars.
This Unique, fun, yet simple family is good for any purpose.