I had the same KC01824 officer. He put appears bona fide, recommend wav and recommend pass on our application but yet made us wait almost 15 months.
I was helping this other lady that had a child and she was confident that she'd be approved. She was called in for the interview not worried at all because she was confident her marriage was genuine. They had a child together afterall. If I can recall she's been waiting since late 2015 when she submitted her application. She just got denied because they didn't feel her sponsor would be able to support her and their child. Cic believed the marriage was genuine but who would have thought about the financial aspect.
So I'd try to proof as best possible any financial support concerns they may have. Not just your income but how you'll support each other housing wise, food, clothing, etc...
Sorry kind of late with this response haven't checked forum much lately.