My experience regarding the melting quality of these alternative cheeses is excellent. However, it contains casein, a milk protein, that some folks cannot eat. Almond Rella brand is made with almonds and also contains casein. It comes in several flavors. If you're allergic to soy, this is a good alternative.
SoyaKaas brand comes only in cheddar.
It also contains casein. Try it to see if you like Tofurella or SoyaKaas better. Soymage brand is one of the two cheese alternatives I have found with no casein. I have tried this brand grated on brown rice and it was good. It is only available in cheddar, and packaged in a round tub.