We had a family reunion on the "Millie" this past February. There were 25 of us in 13 cabins. One cabin was Concierge Class and the others were standard. We were on Decks 6 and 7.
All of our rooms had a fridge. Our TV had plug ins (for my camcorder). I don't know if every room does, but my best guess would be that they do. Every Celebrity ship I've been on had a fridge and plug ins.
Tiramisu? Yummm! That's my favorite! 8)