My understanding is that all rooms are tight and small and lack much room if any for your luggage. That has been my experience on the smaller ships from RCI. I think , and others can confirm, the only rooms that have more room would be when you start getting into suites, but that is a price point that is much higher, or at least too high for my budge.
Was wondering if anyone has any experience on the largest rooms on the Oasis class (Allure particularly) without jumping to the suites.