Our inside cabin on Enchantment, as on the other Vision class ships, had outlets only on the desk/vanity. If I remember correctly, there were 2 US outlets and a European one. I bring an adapter. We also have a multi-port USB charger and *very* long USB cords that reach across the room.
There was almost always something going on in the Centrum -- music, games, etc. There were also lots of trivia, bingo, karaoke sessions, etc going on in the Schooner & the lounge beyond it (I think that's the South Pacific on that ship?), plus music in Boleros.
I'm sure you'll have a pleasant time