Honestly Rob this chic sounds like she's trying to get away with not paying. That shitty tile floor looks good but I would offer her a reclean just to make her happy. But that's about it. As for the transition, I would not touch it. That thing looks beat up and she's just trying to get you to repair it for free. And the irobot she can't prove u did it so just leave it alone. You gotta be tough with these types of clients cause they will walk all over you.