Your evidence looks good. Having personally been through a combo interview, I can tell you what our officer wanted to see. He specifically wanted to see our driver's licenses, apartment leases, and bank statements.....in order to see a paper trail of evidence since the date of the initial I-751 filing (44 months earlier). He also wanted to see wife's ADIT stamp she got after our extension letter expired. He asked us both a couple questions, then said you are certainly qualified for approval of the I-751. Then wife stay in his office and took the citizenship test. I also had all our tax transcripts ready, but I had already uploaded them with wife's N-400 application.
By the time we got home, 45 minutes later, her N-400 case status had already changed to "Oath ceremony will be scheduled"......Next day, the I-751 status changed to "Case Approved".