Suegen is popular for its«Oyakodon» for lunch and it is very reasonable and tasty. I would definitely recommend you go try it if you have had Oyakodon before and know what it tastes like. The egg is half-done, so if it’s not acceptable for your diet, culture, religion or whatever reason it might be, you should pass, because this«half-done-egg» is the key for high quality Oyakodon. It’s not scramble eggs and it shouldn’t be. You can have a variety of Chicken dishes at dinner, so if you intend to experience many different Japanese chicken dishes, you may want to come for dinner instead. Either way, Suegen has a long history and has been loved by people for decades, so the quality is guaranteed(but dinner is expensive: 6,000−10,000JPY range)