I typically judge walkthroughs by one thing: do I have to look up another walkthrough WHILE I'm using one. I am happy to say that that was not the case with the walkthrough. It is pretty good at getting you to point A to point B without issue (plus it lets you know where all of the secret dragons are). This is especially good for puzzle games like Tomb Raider.
Now, I will say that TR2 is my favorite Tomb Raider game ever, and I've played it A LOT and have many fond memories of it. So, I honestly really didn't need the walkthrough in the first place. :-)