Are you talking about Crabtown in Bricktown? That is a local chain. Not so much worth a special trip. Not awful, but then again I haven't eaten there in years.
Not sure where you're from but Nic's Grill does an excellent burger, but it's lunch only so that might not work for you. If it does, get there early 10:50 is not too early for lunch. Yes, it's that busy and very small.
I also really like Los Comales. The green pork tacos are a fav. I used to love the breakfast burritos. They are probably still good, but sometimes the potatoes are not done enough for me. This place is just down from Cattlemans. Good green and red hot sauce.
I also really like the pollo flautas at Tacos San Pedro. Served with lettuce, avocado sauce, and crema on top. They also have a small self serve salsa bar. And will usually bring out escabeche with your meal.
Red Prime is a fancy, modern steakhouse. And for nicer dining, strip-mall style Signature Grill in Edmond is doing some good food. Get a reservation.
Okc has a fairly large Vietnamese population and therefore a decent Asian district with some good pho.
Let us know what you liked. Hopefuly Bigray will chime in. He knows what's good!
Here is a website that you might find helpful.
1201 N Pennsylvania Ave, Oklahoma City, OK 73107
1504 S Agnew Ave, Oklahoma City, OK 73108
303 E Sheridan Ave, Oklahoma City, OK 73104
1317 E Danforth Rd, Edmond, OK 73034