Siam Cafe probably has the most authentic Cantonese Chinese food that you can find in Ohio that's not required to special order. My parents will request that we go to Siam Cafe whenever they come visit me from Columbus. Most of the food is usually spot on, i've never had a bad meal here, except that sometimes when I order a dish it'll be different (meaning sweeter and too much sauce) that how it's usually prepared Cantonese style, and it's mainly vegetable dishes that i've had this problem with. Be adventurous and go with the non-americanized dishes please!