I don't mean to dis the other Celebrity ships -- we loved the Millenium, Century, Horizon, Solstice and some parts of our Eclipse sailing. We even tried Princess just to see if it was "just like Celebrity" -- definitely not.
Embarkation painless.
Balcony cabin works well with great storage in bathroom. Nice glass doors & handy bar for putting your legs up on to shave. The only thing I missed was my trusy hand-held shower head which Celebrity offers in AquaClass & above only. For an 11-night cruise I was able to store my gear with no problem. We had bed near the bath with nice sofa and coffee table near the sliding door. Enjoyed the view many beautiful days and full moons. Cabin steward terrific. You can check your bill every day on the tv -- also good channels, fox news, bbc, msnbc, cnn, tbs, movies on demand free and pay.
We had 7236 - Equinox with Balcony. Quiet - noone above us, great location.