Welcome, Darian! I love that he cited Duke's academics as a major factor in his decision. That gives plausibility to the "unpack your bags" idea. He has three years of eligibility left. Of course, these days we probably shouldn't assume more than one year of anybody.
I agree that the transfer portal rankings are a bit silly. If there's a single number regarding Mensah, it's 9.5. That's his yards per attempt last season, which was absolutely elite. It's hard not to be excited about that.
Highlight reels always show you what you want to see. I like the touch he's able to put on throws, and he seems to have a decent amount of mobility, even if he isn't a big runner.