Meteor 0.5.3 Released: Deployment Settings, Minimongo, Spark, Accounts

Even though it's still in development, has anyone done anything more substantial in this? Is Meteor all that it is made up to be?

This framework fascinates me day by day. Now I'm going to make new project. I'm Python developer and wondering to use Meteor now

I'm investing time into Meteor because I think it has a smart model for concurrent user updates.