I bought a block of FYH and a cheese grater and got to work making some vegan pizzas. Overall, I'd say FYH comes as close to tasting like actual mozzarella as one could reasonably expect. My only complaint is that it tasted a little too creamy and not quite savory enough, but I like to put Tobasco sauce on my pizza anyway, which went a long way in covering up the inconsistencies.
My only recommendation for others thinking of giving this a shot would be to avoid overcooking it, as it sort of got a little watery when I cooked it for too long on one pizza. Also, you don't need to completely cover your pizza in it the way you would with traditional cheese. A little goes a long way, in my opinion.
I'm satisfied with the product overall and will definitely buy more in the future. I give it an 8/10 as a grade.