Unlike other players to make the move from abroad to Arsenal, he doesn't, in my opinion, look like a complete fish out of water. It's his first season and he looks like he's got a bit about him and will grow. I don't think he would be as prolific as say an RVP is, but can see him getting 15+ goals next season. Him, Theo and Wilshere could make an interesting dynamic if WUM plays them together enough rather than f'cking around with the squad and preventing anything from clicking.
Not all players are recognisable individually. IMO Giroud has already proved himself very useful to the team.