I recently sailed on the Vista. While my husband and I were in a Concierge Cabin, my father was in the solo cabin (also concierge class) next door. The Vista is lovely, and both cabins were attractive.
If you are considering a solo cabin, I want to give you a couple of heads up. First, unlike in our cabin (and in all balcony cabins I have ever stayed in), the door to the balcony does not encompass the entire back wall of the cabin. It is a small door that takes up only about half of the wall. That means that much less light comes into the cabin. I found my father’s cabin to be somewhat dark. The balcony itself, however, is a nice size and has ample space for one person. The second watch out is the bathroom. It is SMALL. In contrast, our cabin had a nice-sized bathroom. The shower in my father’s cabin was tiny. Once when he dropped the soap, he had to turn off the water and exit the shower in order for him to pick it up.
On our sailing, the solo cabin cost my father about $1,000.00 less than the total cost of our cabin. If I were sailing alone, I think I would probably pay the extra $1,000.00 and get the double cabin. Not because of the bathroom (I could live with that), but because of the limited natural light in the solo cabin. I found that off-putting. I don’t know if Oceania ever runs sales with a discounted single supplement, but if it does, I would definitely pay the supplement and get the double cabin.
Hope this helps someone.