Status Update (1)
Just got my Sunfur Panda :) Cute little devil.
Additional Comments by Date (3)
Patch 5.2 has caused the Explode ability to be bugged. It only ever does 40% max health as damage, even to Beasts who should take 60%; and Flyby does not increase the damage it does anymore.
I also got this guy by being a paid subscriber to WoW Mobile before it went free. As a battle pet, he's great vs. anything but elementals, and amazing against beasts. Use Boombot then Repair when he's at about half health and 3 turns later, you're back to full and your enemy goes Boom. When he says "Ready to play!" it never fails to make me smile :)
I caught a rare one of these and I absolutely love it. Stoneskin, Sticky Web, Leech Life, Sticky Web, Leech Life, repeat. Defeats pretty much anything it comes across without ever dropping below 50% health.
To respond to comments below: the best way to determine rarity is to use an addon or macro. Check the Tools section of this site, there are several good ones.