I went to Wally's Burger today and the place looks really nice. bcrdukes pretty much covered it all in his post so I'll add onto it. I ordered a Deluxe Wagon with fried egg and mushrooms. The burger itself was really good. I don't know if it was the sauce, the egg, or the mushrooms, but it was goooood. The patty was nothing special, but I could sure taste the difference from any other burger joints I have tried. And as noots mentioned, Wally's is far better than FatBurgers.
The fries - it comes in a huge bag full of fries, but was nothing spectacular, really soggy. It came salted but the fries were something like McCain's or something.
The drink with the combo is a small cup.
For an extra $4 for the combo, I'd save those $4 towards your next burger.