Overall, I have taken a solid look at the Shokz Guide and can honestly say it is one of the best Starcraft 2 Guides out there. This Shokz Guide Review will hopefully spell out some of the reasons why this guide is or isn't for you.
Personally I find it is totally worth it to have every great strategy in one place without having to scour the internet on all sorts of crummy sites to find the Starcraft 2 tactics you're looking for. With the Shokz guide, you don't have to worry about it! Plus his guide is constantly being updated, so you have plenty of strategies coming on the way to get your money's worth over the years.