It's different, but way too early to say whether it's better/worse/the same. Kershaw did a MIM blade on the 1597 Offset in like 2007, it was 440C and there isn't a ton of info on them as far as reviews from actual users and how the blade performed. I don't think they ever molded any other blades for any other knife after that, so take from that what you will.
Nobody in the knife world is begging for MIM blades, and I think Magpul will have to prove that they can make a knife either better or cheaper if this technology is going to become more common for knives, and they definitely didn't hit the mark on the latter with this one.
Whether or not it is a piece of crap or the next big thing, it's cool to see the innovation from a company like Magpul that has the time and money to invest.