I grew moro, sanguinelli, and tarocco in my greenhouse for 3-4 years. They didn't produce much fruit despite vigorous growth, and what fruit they made was not all that good tasting, and I have since dug them all up and replaced with mandarins. Might be my environment, not sure, but with so many excellent mandarins it felt like a waste to give them space.
I have had some really excellent tasting Moros from the grocery store, but most batches were poor (from the grocery store). I'd love to try some high quality tarocco and sanguinellis from an old tree to see how they are at their best.