Embarkation timing was poor - we paid to upgrade to Concierge class, which comes with an embarkation lunch. Unfortunately Celebrity would not let us check in until 2PM. The lunch was already over by the time we got on the ship.
Also, the Celebrity app started pining us every hour around 11AM warning us that we had to view the safety briefing and check in at our station before 3 PM. By the time we got onto the ship and went directly to our station there was about 20 minutes left.
We sailed with about 80% capacity. Even with a few hundred guests shy of capacity, there were no tables in the buffet and main dining room available when there was rain around lunch time. Had to circle the buffet 3 times before we could get a table.