I share a poor opinion of Donatos but my wife likes it so I guess, as they say, there's no accounting for taste.
In addition to the bland crust, IMHO they have topping issues. They have a pepperoni pizza where the pepperoni just smothers the entire pie. I guess some people like this, but to me, it's just evil - a blatant admission of the lack of regard they give to the 'whole'. Oh well, I guess that's part of the reason we have so many specialized pizza style forums here.
But a frozen pre-sheeted dough needn't be bad. I've had some good pizzas that started the same way. The thawing and proofing process was pretty meticulous in the example I am thinking of.