This is just a fairly standard, run-of-the-mill story.  Paul McGann mainly does a good job; India Fisher does a great job as Charley; the setting's interesting, the Web of Time arc gets fully going. This story is an interesting concept with a promising plot but is not executed quite as well as it could have been. Some of the dialogue feels really clunky especially when it's just the Doctor is alone and some of the voices are just overly cartoonish. The sound effects are also particularly bad especially the bullet effects. This along with slower pacing full of expository dialogue you have a story that is good but falls short of greatness