Never had a problem, always a tasty burger that makes you happy! Ask for light mayo, or its maybe a tad soggy/overdone on the mayo.
Other nation's aren't as clean or consistent, this is a 5 star for "a cheap burger" and comparative to other nation's locations I've been to (Pleasanton, Berkeley)
Being new to the Bay Area, I wasn't familiar with the Nation's chain. Â I work in Orinda, which has relatively few eating options and almost nothing that's cheap (except for Subway), so I was thrilled to discover Nation's - which is not only a great deal but also very good food.
Oh yeah, and don't forget to save room for pie!