I'm using https://github.com/guregu/dynamo https://github.com/guregu/dynamo for the data reading/writing. In my experience, the trick with Dynamo is the schema

I'm using https://github.com/guregu/dynamo https://github.com/guregu/dynamo for the data reading/writing. In my experience, the trick with Dynamo is the schema design. I haven't had problems with the libraries/queries as long as the schema made sense for how I'd be accessing the data.