Aftermarket DVD & Nav suggestions

Hello all, i'm the proud owner of a 2010 Camry SE. I've been looking at several different aftermarket (factory looking) DVD w/ NAV units. Most of them range from $300-$400. I know they aren't the best quality in the world but i'm getting one to look clean in the dash with a direct fit. I've done massive systems in the past but this for my child to watch movies on trips and Nav for myself. I just wanted to know if anyone out there had purchased one and get their input on it. Thanks in advance, Max