Mongodb is great ... for logging stuff,or quick prototyping.It's not that fast on writes ,but pretty fast on reads. In my opinion,what people usually really wa

Mongodb is great ... for logging stuff,or quick prototyping.It's not that fast on writes ,but pretty fast on reads. In my opinion,what people usually really want is a RDBMS + a full text search engine like elastic search. But again,one needs to set these things up. Mongodb didnt have aggregating features in the past,and their map/reduce feature is not that good.But again,the product is still young,maybe it will get better.