Maria,
Yes I did have the standard size and it is more similar to the size of the Paul Gauguin but I think the cabinet space is better on Oceania. I don't spend much time in the cabin so it didn't matter to me, but if you want a comparable experience to the Voyager or Mariner, you would need to book a Penthouse. I agree with you that the brochure is beautiful, but what I like best is that the pictures are a true depiction of what the ship looks like.
