I would also like to mention Objection[1] it is very minimalistic and doesn't get into your way. Most of the time you are writing queries with Knex[2] or you can write raw sql if you feel like it. I tried a lot of ORMs for node and this is the one I liked the most. The guy working on it is also very responsive and have superb documentation.

1 - http://github.com/Vincit/objection.js

2 - http://knexjs.org