My ex and I were both extensively and expensively legally represented and the negotiations were long and painful. When we finally had a Consent Order, the judge apparently queried one or two points. My lawyer told me about these (I can't remember the details) and responded, and it was then approved by the judge without alteration. I don't think it added much time to the process.
(Academic in my case, since my ex has so far refused to comply with the terms eg to pay child maintenance...)