Stayed here 4 times in the past year - never got upgraded without SNA. With SNA I got an upgrade to a suite which basically were two rooms transformed into a suite: one room had a bedroom and bathroom, the connecting door gave access to the second room (same size) with instead of the bed a table and a sofa and another bathroom (still with shower and toilet).
In addition to earlier lounge comments: there's a rooftop terrace at the lounge, great for sunny days. You can even see the top of the Eiffel Tower from there (but far away)