Just to add to what has already been stated, Allspice Tangelo is a great variety, I have eaten the tangelos from Truman ranch which was mentioned above, they have a truly unique flavor. It is hard to imagine a citrus tasting like spice but the allspice tangelo really does, at least for me it's mostly the aftertaste where you notice the spice.
I wish you luck in acquiring a tree, if I were still in AZ I would be glad to help you out. there are all kinds of great varieties at Truman ranch I highly recommend making it out there if you ever get the chance.
