I have one in my yard that I planted probably 25 years ago. It bombards me with fruit almost every year and I only have one plant which I have trained into a small tree shape. I don't water it much at all and rarely give it fertilizer, and I am in Northern California zone 9b with HOT triple digit summers.

I made pineapple guava jam one year which was unusual but pretty good. It's a unique fruit with an interesting perfumed flavor, and a beautiful trouble free plant.