yeah we have wawa all over.
Ive found it no better or worse. For one thing, if it is cheaper than name-brand, your chance of having a quality, properly additized gasoline is from them. They seem to run a pretty good ship.
I recently found a place called eastcoast which is russian no-name gasoline, but it seems to provide better MPGs.
Turnover and a well kept station is important to me... Wawa tends to give this.
That said, especially if I see a shell or top tier brand with competitive price, Ill go there.