My wife and I were on the inaugural cruise to the Antarctic for the Sylvia Earle back in December 2022. She was a beautiful ship and very well designed for expedition cruising. I was particularly impressed with the zodiac marina and how quickly the crew could get them into and out of the water.
The expedition cruise team was professional, the ship was comfortable, and the food was good. If you are looking for adventure and exploration, you will be impressed with this ship. If you are looking for fancy dining and entertainment, then this is probably not for you.
For me specifically, there is one aspect of the ship that sets it apart from all other small cruise ships. I do get seasick and wear a patch on the cruise. Between the X-bow and the ships stabilizers I found the vessel to be remarkably comfortable. This is coming from someone who has now crossed the Drake Passage twice and rounded Cape Horn.
The cabin was roomy with a comfortable queen sized bed and still plenty of room to walk around it. Average sized bathroom for a smaller cruise ship but large enough to be comfortable for one person at a time. The room had a good sized closet to hang the winter gear you don't leave in your dedicated locker in the mud room.
The room had Australian power sockets. We had an adapter but didn't need it as it also had USB power on both side tables.
The balcony had an excellent view out the side of the ship which was nice to wake up to in the morning.
We had no issues with sound and didn't hear anything from our neighbors to either side, above, or below.