I had one several years ago. I put it in a yard sale.
Rice takes "x" amount of time whether it's made in a cooker or in a pan on a burner. Every time I made it in the cooker, I had to add more water and cook it longer. I think altitude may have had something to do with it. It sure wasn't worth it to me but the newer ones may be better.
I usually make a large batch and keep it in the refrigerator. Then I just warm up what I need in the microwave.