"Snack Time is an MG novel at 35,000 words about a boy who can't decide between Cheetos or Fritos."
(No, this is not my real pitch!)
Do you feel that this "just the basics" info should open the query later or come a little further down? There seem to be two schools of thought on the matter.
I also personally prefer metadata at the end, as it lets you dive straight into your query, but always do your research. Agents prefer different things. Some of them will specify that they want it at the beginning or the end, and obviously if they say you should always follow directions. However, most don't say, so you've got to flip a coin and hope for the best. The good news, though, is that where you put your metadata isn't going to be the thing that makes or breaks you.