Once - its inexpensive but it shows in the standard of the fare.
I have a few pubs locally. One is a Wetherspoons.
The food is fairly similar, pretty average "pie and chips" cafe type food,
A bit of garnish or peas. It won't be amazing, but they all have some better options.
I've paid two or three times more for food in some of them though, for the same dish.
Wetherspoons is definitely cheaper overall, a few pints last night, £2.15 a pint.
It is exactly the same beer as is the pub opposite, in fact they brew it, but they sell it for £3.95 on their premises.
(Ironically on the way back from a restaurant nearby, don't ask about the price of a bottle of wine!)
I think Wetherspoons just buy bulk for the chain, stack it up and sell it cheap. Both food and drinks.
Selling it as "a man of the people".
They do have sticky carpets and tables though.