Is there somebody that has experience using mongoose.js as Node.js mapper for Mongodb at high scale?
I am wondering if I should use the native driver, so I keep everyth
Unless you really need an ORM\ODM I recommended you don't use Mongoose at all.
It seems most people (including me, briefly) are you using Mongoose because the native driver's api is to cluncky and difficult to understand.
That's why I have switch to mongojs. Mongojs is a module that wraps the native driver but with much cleaner api that is almost identical to mongo shell.
I can't really comment on the scalability of Mongoose but mongojs is just that, a lightweight wrapper around the native driver.