My adult son and I sailed on the Crown mid-July 2019 around the British Isles. Overall, it was a very fun experience that we'd consider doing again, perhaps with the whole family next time. Neither of us had been to UK or Ireland before, and this cruise allowed for us to get a quick overview, giving us some ideas of what we might want to see in more depth later.
We stayed in an inside cabin near the Terrace Pool (deck 14), so it was easy to get outside to look around and also up to the buffet to get breakfast or a snack. The room was small but very comfortable with plenty of storage for the two of us. It was also very quiet. We had some minor problems with the TV and the toilet that were quickly resolved.
We ate dinner in the dining room most nights and enjoyed almost everything. There was usually a good variety on the menu. Service was always friendly and efficient. We ate in Anytime dining room and never had to wait for a table, though one night there would have been a 15 minute wait if we hadn't been willing to sit with others. We ate breakfast in the buffet. There was a wide variety of consistent breakfast options each day (eggs, breakfast meats, breads, pastries, cereals, yogurt, fruit). If you couldn't find something you like, you're too picky! They opened up a second serving area (Cafe Caribe) as well as the Horizon Court to accommodate the large crowds at breakfast. Remember, there's over 3000 passengers aboard, and most are going to be trying to eat breakfast in the buffet at the same time especially on a shore day.