For me it's pretty simple why I don't go there.

A Pizza Hut large pizza, sans discounts, begins at £23/£27. And it tastes likes ass, while also in the past ~2 years the amount of cheese and toppings was reduced by half, at least.

Meanwhile, the little "greasy spoon" pizza place that delivers within 15 minutes, for the same price, will do a family meal deal of 2 large pizzas (with tons of toppings and proper amount of cheese!), a large garlic pizza bread, an extra side and a 2L drink.

Oh and the latter pizza tastes awesome, is delivered with care (by their own drivers, not an UberEats fuckwit who'll toss the pizza in his backpack vertically), and the place regularly tossed in a little extra for frequent orders, like an extra dessert...