Gerry, Whilst I'm not on the Splendor, I have included a picture; taken by Steamboat whilst on the preview cruise from Civitavecchia to Barcelona in February, showing the electrical outlets in a Concierge Suite. As well as US outlets it has European outlets that will take both the Italian (3 prong) plugs along with the French (2 prong) plugs.
We are boarding Marina next Monday. We choose the house select beverage package as our OLife choice. Our SBC is available to use on our online account and we plan to use this credit to upgrade to the prestige packages at $20 per person per day. We tried to upgrade to the prestige package when we booked our speciality restaurants but we were unable to. We contacted our TA who then contacted Oceania. We have been advised that we can’t upgrade to the prestige package online and will have to do this once we are onboard. They also confirmed we can use our SBC