Do you believe taking a “break” is beneficial for a relationship?

If a relationship isn’t doing well, but both people still very much love each other, do you believe taking a break is beneficial or harmful? My husband and I have been nonstop arguing, bickering, just generally not very happy, and we’re considering taking a break for 2 weeks. We’ve agreed that he’s to stay at his parent’s house, and that we’re both to live the 2 weeks with our marriage’s integrity in mind (no intimate relationships with other people). We’d really like to get back to a happy place, we have children and many years of history, just neither of us is sure what steps to take. I’d love to hear other’s experiences with taking breaks in relationships, or just different beliefs on the subject.