First of all this was an "Expedition" cruise on a 100 passenger ship, the Silversea Galapagos. So I understand that the cruise can't be like what you would experience on a medium-to-large sized all-inclusive cruise ship. Silversea advertises itself as the most all-inclusive luxury cruise line, but you have to hold the Galapagos out as a bit of an exception. OK, having said that...
The Galapagos Islands are a great place for an expedition trip. The cruise itinerary was great, and there were about three activities a day, including hiking on an island, taking a close look at the cliffs along shore from a zodiac, snorkeling, kayaking. The ship provides all the gear for snorkeling, it has numerous 2-person kayaks and a few single person kayaks, and it carries 6 zodiacs. We had numerous wildlife sightings every day. Some of the volcanic islands have about the most unusual terrain I think I've ever seen. All activities were led by licensed Galapagos naturalists so you always know what you are looking at.
So it's an active cruise and I have to say, if you are at least mobile without any problems getting around, you should enjoy it. If you don't get around so well, this may not be for you, it's not a trip where you just lounge around on the ship all day.
Good size, nice balcony. Comfortable bed. The drawbacks were the closet doors - they don't have a way to secure them when they are open, and the thermostat. The room was freezing when we arrived and it took the crew technician three tries to make it right. We could not adjust it on our own.