I've got a Che from Edible Landscaping. Usually you need two plants for pollination, but Edible Landscaping claims their tree is self fertile. Last year it set quite a few fruit, though it lost most of them before they ripened, but I did get to eat a handful. It seems to take a few years (3-4) before it starts to reliably produce fruit. I am hoping that this year it will provide a decent crop. The fruit is quite tasty.

Thanks. yes, self fruitful would be great. Was that handful of fruit the 1st or 2nd year? Did it come bareroot or potted?

Experiences - at least here in the eastern US - from a friend who's grown Che for nearly 2 decades, suggests that you don't need two; they will set fruit parthenocarpically. He initially planted both a 'male' and 'female'. Something happened and the 'male' died - but the 'female' continued fruiting unabatedly, so he never replaced the 'male' tree. YMMV over there on the left coast.
Hidden Springs is good; I've also purchased from Edible Landscaping, but it was over 15 years ago - have never heard any complaints about either outfit.

I have a tree from Edible landscaping that has been fruiting for at least 6 years. They will send you a containerized plant which I find much easier than dealing with bare root. The berries flavor remind me of watermelon, very sweet and no acidity.