He's not very good. Better than McGarry, not as good as Mackenzie. Not as good as Molloy. A very average defender who'd be a good squad backup to have. However, if he's not interested in being a backup then he's best off elsewhere. He's nowhere near good enough to be starting every week, and doesn't really have any attributes that stand out. You can tell Rubi to be aggressive and attack the ball, Molloy to focus on sweeping up and using his good distribution. Jensen is okay with the ball, but slow to use it, is okay in the air and not particularly quick. He's like a poorer version of Molloy but at an age where he should be at his peak defensively.
Morris and Gueye both had very obvious attributes that a manager could work with, I don't see any in Jensen. Like McGarry, he's just that bit below the required level, which is fine for backup with a view to shifting on when we try out the next guy.