Should Christians go to Church? [Spirituality & Religion]

I go to church weekly for the most part. I've been talking to a guy who doesn't go because he believes the church isn't meeting on the Sabbath, is operating under Old Testament Law by taking tithes, and says that the Church is just a body of believers, which is true, I personally don't think those are reasons not to go to church. he claims that he fellowships with his friends. I'm a little weary of this, because if a husband doesn't go to church, but the wife does, that could cause division in the family. What are your thoughts?