As a Danish fan of United for 35 years, it is fantastic to see a Danish player in United again. The last one was Lindegaard, and it's been a few days since then ;-) I hope there is a definite plan for Eriksen and he is not just in the club because he was a free, good player. I have a hard time seeing where he is going to play for us. Bruno has Eriksen's most natural position. And should Eriksen play further back on the field as CM, then the midfield will be too poor defensively against the bigger teams. Eriksen can play LW or RW, but it is definitely not a favorite position for him, and he is significantly less visible in those positions.
But Eriksen is a win for United. He is deeply professional and he is not a type who creates problems in the squad. He's an amazing person and is the type who tends to be liked by teammates. He has a very high work ethic and is always one of those who has run the most in a game.