Just watched the 4 demo videos, and I gotta say.
This looks better than an average, grind-festy MMORPG
Since it has some neat aspects most games never think of, and I will list some.
LEGO: since it's just that badass
Items have skills, not players: There's no such thing as a class, and I think it doesn't have levels either.
You get skills for what equipment you have, some combat related, and some just nifty tricks.
Building: Sure, I read the earlier posts, and I agree, noobs will make rainbow crap, or copy-paste builds.
But remember, people like us (the Blockland community) are playing a game that's exactly for building creative junk.
All in all, if I can cough up enough money, I'll play it.
Though it might be an on-off subscription.