[JamesLefrere]

Well, as a Meteor developer, I think they could make this clearer, since obviously your data has to go somewhere, and you do need to design the schema and manage the data.

Currently it uses MongoDB, though (last I heard) there are plans for Postgres and possibly more, but it will have to work like MiniMongo on the client (i.e., no ORM, and mostly the same on server and client).

It's pretty much hassle-free though, especially with some of the community packages, such as collection2 and simple-schema.