Is ember-data a good implementation for an ordering system?

I have created an ember ordering system and I am thinking of implementing Ember-data. The application mostly consists in grids: customers, orders, items ordered, etc. My question is, if I start using ember-data, I create a cache full of records and start working against that cache. If another user is using the app the same time, she will be working against a cache too so both instance of application are not aware of each user changes/updates until one of the users refreshes the browser?