It's fine. It's a McDonalds, and there's a play place, the play place has an air hockey table. Lots of parents use these as a good way to chew up some time while your kid has a good time. Now that McDonalds has wifi, you can even get some work done or play on the internet while you wait.
You probably already know if a McDonalds with a Play Place is going to appeal to you, so there isn't much I can add to that.