I've been to Shiloh Grill quite a few times and so far I have never had a bad experience. To start it's a relatively small restaurant just off of Grandview. They have their own parking lot so if you're worried about parking they have you covered (not sure how big the lot is).
I almost always get a mac and cheese when I come here. Last night I got the steak mac and cheese. It did not let me down. It's a fairly large bowl with their homemade mac and cheese and a piece of marinated steak on top. There was plenty of cheese sauce and the steak was grilled perfectly. The marinade was a little bit on the sweet side but was still very good. My girlfriend got one of their build your own bowls and of course I tried it. The seasoning they use in it is what makes the bowl stand out.
This is definitely one of my favorite places to eat in the city. If you get a chance to go you probably should. Oh and whenever you finish their bowl of mac and cheese they tend to congratulate you which makes everything even better.