We love cruising and we love Royal Caribbean but we did not love our experience on Navigator of the Seas!
Embarkation at Civitavecchia was straight forward and efficient, as was disembarkation at Barcelona, any problems we encountered were in between.
We had the soda package but most of the fountain soda machines were broken and the bars were serving soft drinks from large bottles meaning they were warm and had no carbonation unless you were lucky to get the first glass from the bottle! When we complained about it we were treated really badly as apparently we should have complained sooner - we were giving them a chance to fix it.