Are World of Warcraft Guides worth it?

From my personal experience before the recent patches World of Warcraft has been quite annoying especially when you had to read all your quests to actually get to the place to gather materials you needed to complete the quest. Now with these guides Zygor in particular,  has actually held time and my characters are improving in gear and I'm actually keeping my gold level decently high. The most appealing outcome from Zygor guides is the time you spend playing. For people like me I live a quite busy life and can't spend 10-12 hours daily on World of Warcraft. Zygor has completely changed that. I play for 2-3 hours a day and still competing with People who do play for 10-12 hours daily. I'm glad I bought this guide and now that there is even more content for cataclysm I'm sure I won't have to worry about leveling all my toons to 85 as fast as my friends. I will be able to set times for heroics which I never got to do before. I'm even going to have time perhaps to raid. How great would that be to have a chance at the best gear in the game...