Does the rooftop room with sea view have direct access to the communal terrace?
Both roof top rooms do. We stayed in these in September, having to change rooms as neither was available for the whole week. The more expensive one with the private terrace is slightly bigger. And the private terrace In between the room and communal terrace is great to have, though had no sun. See my review for photos :)
Get an answer from Convento staff and past guests.