I'm actually playing Etrian Odyssey IV (maybe three or four hours). I bought it almost a year or less but until recently I want to play it.
I am not unfamiliar about what I can expect from this game, beause my favorite videogame series is Shin Megami Tensei, and I have a appeal to the first-person ones, but this game is hard... and I love it.
I still struggle to understand the mechanics and how to choose the skills/parties, but the rewarding feel when you explore the dungeons and be capable of survive the enemies attack is something I needed from a game.
The music is nice. I was reading about how they changed the music for this game, so I will listen the music from the other games