I've found that *any* tamales I've ever gotten from anywhere -- even the Mexican Mexican restaurants (as opposed to gringo Mexican) -- are mostly masa. Which is okay if it's good masa with no lard. I've learned to expect not much filling. (Filling I can get from the tortilla-wrapped stuff.)
My favorite new TJ's find: Ginger Senbei Snacks -- sort of a cross between little crackers and cookies, texture similar to fortune cookies (but thinner), and just lightly sweet with a hint of ginger.