Depends on the price you can get it at (I got mine early January for $145, would grab a second if I could find one anywhere NEAR that price). But, generally, it is a great value. 2 sets of rippers ($120), a bastiladon ($60), 24 skinks ($35), a starpriest ($20), and a troglodon/carnosaur (~$85). All told about $320 in value.
I think there is a casual play rule insert where you can use the whole box as a battalion (I may be wrong about this), but generally I find that it's a great deal due to the fact that you can run a Shadowstrike Starhost (1 of our 2 best battalions) with it right out of the gate. I'd say look at what you are likely to use from the box, and if it is under the price of buying everything you'd use separately, pull the trigger and get it. Personally, I wanted to run Shadowstrike, and eventually transition into a summoning force, and this was the perfect way for me to start building those lists.