I didn't get far with Jack Keane 2 -- quit after maybe 3 hours because I wasn't enjoying it. I didn't like that many of the "puzzles" had something to do with aiming, shooting, stealth, fighting, etc. Also you often seemed to have to do a sequence of things in a specific order to make progress, and if you skipped a step it wasn't obvious why what you were doing was failing. Even with a walkthrough I thought it was too frustrating to play.
It's possible the game gets better later on, but I didn't make it past getting off that abysmal prison ship. Too much work.