I've traveled throughout the world but Antarctica tops the list of places I've been. My tour was with G Adventures and specifically the Antarctica Classic In-depth. I couldn't be more happy with the experience. First off, the crew were incredible. Our expedition leader was in fact featured on Blue Planet (Whale Sharks) and set the tone for the expedition. But all of the crew were fantastic and they gave talks on history, wildlife, climate and were also our zodiac leaders. I signed up for the Kayaking option which I highly recommend. There's limited spots but if you have kayaking experience it really does offer a perspective that's unique. You don't have to kayak during each operation, so a couple time I went on land as well, but you can't beat being a foot away from the water, touching icebergs, seeing penguins swim past.
The organization of the daily activities was top notch. There's a daily briefing posted each morning and a recap in the lounge every evening before dinner. They kept us up to date on everything that was happening, both from a weather perspective and also some key points around the area we're travelling. I also appreciated their concern with the environment and impact on the wildlife and ensuring our footprint was as minimal as possible. It's a balance to want to see such a beautiful place but also understanding that you being there can potentially have a detrimental effect. So they're sensitivity around this was appreciated in addition to their contribution around Planeterra.
The size of the ship was just right. Only 120 passengers which meant it never felt crowded, operations to land were quick and efficient, and the captain regularly opened the bridge so you could sit and enjoy things from that perspective, with binoculars provided for bird or iceberg watching. This would not be possible on the larger ships.
I didn't spend much time in the cabin, for obvious reasons, but it has all the amenities. Lots of charge stations, closets for clothes, comfy beds, and a full en-suite bathroom. They also offer laundry service. I felt they thought about all the needs for a passenger and accommodated that in the design of the rooms.
Would recommend you take small car as opposed to the big bus tours.