It got really interesting, really fast (intro was done right, with a MGS vibe) then a TP system which I liked. But then, story wise, it goes all over the place(Ha, that angel chick was a douche, like, Ill help you ONLY if you do this, not complaining, it was funny.) I think you could have achieve waaay more with a bit more of time, like it was starting strong, maybe a couple more missions of time travel, Or a better finale.
My experience was good. But it could gotten better =)