Stormchops: useful, or just lawlz?

I got the recipe for Stormchops today from The Rokk, and I'm wondering if the extra aoe damage and threat is useful for tanking, or if you'd rather just have the 20 stam food and be done with it. Does anyone have any experience with this new food?

Here's more info on the effect:

http://www.wowhead.com/?spell=43730
http://www.wowhead.com/?spell=43733

Bascially, it looks like 19-31 AoE damage every 8 seconds. On AoE fights where a little extra stam boost isn't that important I could see using this. I'll definitely be picking it up for farming, thanks for the tip!