We stayed at the Blackwell for three nights and ate breakfast and dinner there every day. I am not a fan of breakfast buffets, but this one is very good and well priced ($9.95 during the week). The eggs and bacon were as good as if you had ordered off the menu. One day we did order breakfast off the menu and it was delicious. I recommend the corned beef hash. The food at dinner also was very good. The cheeseburger and french fries were really good and the chicken specialty on the menu was so good that I had it 2 nights in a row.
The servers are all OSU students who are very pleasant, but the restaurant could be run a little more efficiently. The person who seats you may also be your server. And, there does not appear to be a supervisor on the premises. But, all in all, for a hotel restaurant, it is very good.