I like fat burger, in fact I'll go as far as to say that for big burger diner experiences, I'd prefer this place than the nearby five guys 1 burger joint.
I believe that in the last 3-4 visits I've had over the years, I never had an issue with the quality of the burgers served. I particularly like their milkshakes and chicken sandwiches as well.
But in terms of the price, wanting something cheaper doesn't justify going to this place. Cheap, fast, burger fixes are best spent at Mickie D's. But Fat Burger is a great alternative if your willing to spend 10-15 dollars