Anyone tried the Agua de Kefir?

Agua de Kefir Guava Paloma (left) Agua de Kefir Orange Peach Mango (right)

How do these taste compared to kombucha?

Agua de Kefir Guava Paloma (left) Agua de Kefir Orange Peach Mango (right)

How do these taste compared to kombucha?