We just got back from the Celebrity Constellation Baltic cruise.  I have to say that each port was fantastic and I would highly recommend the itinary.  I liked the ease and speediness of our check in.  I was great that Celebrity let us check in early and allowed us into our rooms hours before that published time.  It was greatly appreciated as we were coming from CA and the 8 hour time difference was hitting us.  I am highly disappointed in the general cruise experience with Celebrity.  We have cruised with RCCL several times and Oceania.  We loved our experiences with these lines, and thought that Celebrity was a step up.  Imagine our surprise and disappointment to discover otherwise.  First of all, the staff was not friendly on the whole.  They work harder at making no eye contact or acknowledging your presence.  There wer several times when the staff preferred to talk to each other rather than recognizing your presence.  I don't need them falling over over me, but at least look at me to see if I need something.  I have always been impressed by RCCL staff and how willing they were to be of service.  This cruise also has sales pitches constantly that were totally inacurrate.  They pushed their shopping recommendations and acted like they didn't know anywhere else to shop.  Their recommended shops were higher priced than many of the local shops that were offering the same items at the same quality.  We bought a Faberge' egg on the ship only to find the same egg at the London Tower gift shop for a huge price reduction compared to the ship.  The gift shop even had more info than the ship's store.  We were also disappointed in the quality of the food served in the dining room.  Very unremarkable, and at times down right bad.  When we did order room service no joke 50% of the time, we never got it!!!  It was not a complicated order, cheese and crackers !!  I think that we ordered maybe 4 times, and twice it never came.  We also didn't feel like the cafe food was very appealing.  Many times the staff serving would disappear when we were standing waiting for our selection.  The pizza and pasta guys wouldn't even look at you, and then turn around and leave.  There was a couple of times when I just wanted a slice of pizza and ended up leaving without a slice even though it was in front of me, we just needed someone to hand it out.I would not recommend this cruise line, nor would I cruise with them again.  I will cruise RCCL again instead