Meter out of the box "just works," but it only works with Mongo for now, and it only works if you are all-in with the platform — on both the client and the server side. Those are two pretty big bets to make.
I would say Meteor is ideal for learning, except that it's important to learn what the request-response lifecycle is all about, and I think it can be detrimental when a "magical" framework does so much for you.
And one thing I just can't get over -- page loads in Meteor.com feel super fast. Until you realize it actually downloaded the contents (not the unseen images, of course) of the entire website! DPP is doing some interesting things, but some of Meteor is some nice magic tricks that we've seen before. 600kb+ of JS on page load is certainly an interesting concept.
Huge amount of work by a talented team. A super nice community. As for the framework itself, give it some time, let it grow, but most importantly, understand objectively its strengths and risks. It has both!