D20 applied ED to a T20 LAC that is need-aware, meets 100% of demonstrated need, and has no loans for students from families with income under a certain amount. We ran the NPC, found it within the range we were comfortable paying, printed out each page, she applied for both admission and aid and got both.
Did it hurt her? Obviously not. Her chances may have been better applying earlier and having fewer students competing for the aid money.