I posted in a different thread on the Rubio "hates the senate" subject, basically that his justification appears to be that Senate votes are prearranged (or rigged, if you prefer), and absenses are taken into account. His absence doesn't change Senate outcome at all. Not that his chronic absence is excusable, just that I think he's right, it makes no difference.
But, I'm glad he's created some bad optics for himself. I think he's a snake, and would not vote for him.