What is Toki Pona?
Unlike Esperanto, Toki Pona is a constructed language that favors simplicity over clarity, and touts itself as "the language of good. The simple way of life."
By virtue of Toki Pona's extremely small vocabulary, and order-independent syntax, the language is good at talking about feelings and simple relationships, but not about the finer points of politics or silicon-on-insulator microchip fabrication techniques.
Tokiponists believe this is exactly as it should be.
Whether you accept the philosophy or not, Toki Pona is fun to speak.