my gripes with meteor are:

not sure how ddp works or how to scale a meteor app. does not work with postgresql or any other db.

The biggest issue for me is the tight coupling to MongoDB.

Background: we used Meteor back in mid 2013. we ended up wasting a lot of time and resources because we had to learn everything. when we did, it did not perform so well, over 1MB going back and forth for what could've been achieved with a simple LAMP or ROR app. I think they've dropped Meteor completely.

Anyways, the windows support is nice. Might give it another go now. Not sure what the deal is with MongoDB 3.0. I've been using postgresql entirely now.