Unless you have the most expensive package, it is not worth it.

I like that I can easily go take a look at my stats from youtube on one easy to read screen. It's great to be able to see how many subscribers and hours watched I need before I can actually monetize my youtube channel.

The best thing about vidIQ is the tons of features you get for absolutely free, if you decide you need it. Having a youtube channel, you will definitely need this extension.