I agree Iona is very impressive, especially if you are a wimpy thief getting his butt kicked throughout the Thieves Guild questline (Allek and much later Marius).

Even Allek who eventually hauled her off to the pillar at Boethiah’s shrine (because he couldn’t stand the sound of her constantly chewing) realized he’d been a fool to leave her at home guarding his apple and mildew collection while he was off adventuring.
I’ll grab some shots of the vanilla basement with the kids’ room as soon as I get a chance. I’m pretty sure Jensa has it from her campaign to win hearts and minds for High King Ulfric after the war, and she would have installed kid rooms in all of her houses. I think the furnishings are just changed in the enchanting room, but I can’t remember.