Admittedly, I'm excited. While I don't play HvZ (not out of disinterest, mind you), having blasters themed like this is aesthetically pleasing to see. That, and having hammer-controlled priming has always been something I've wanted to see on new blasters. The ooze/slime themed darts I could care less about, but the blaster's design and function should be a home-run regardless of what game it's aimed at.
Here's a higher resolution photo of the SledgeFire than most of the ones I've seen out there. The 3-round cartridge system is cool to me. I almost wonder if, with the larger diameter of this blaster, if you could turn this into some sort of Grenade-launcher looking thing firing those new Mega Darts. Don't ask me why I'm thinking about mod potential already on a blaster I haven't even seen in person! Just the tinkerer in me thinking about possibilities with this, especially since I've never really been fond of cartridge-based systems on Nerf Blasters. To me, it's just another plastic part to mess around with... and eventually lose or misplace. Still, I haven't seen the Nerf brand do a cartridge-type firing system recently, so it'll be nifty to see how they work it in. Expect to see the HammerShot, the SledgeFire, and the new darts hitting shelves late summer/early fall in the US.