You will not be disappointed with Christina's place, it is truly mere paradise. I went with my mother, but the house is ideal for families as well as romantic for couples (the most beautiful sunset view in the island is seen from the garden). Christina was very attentive and quickly responded to my messages, she is pure joy and even gave us some souvenir presents. The check-in was smooth, I arrived very early to Santorini and she let me get in a little before the check-in time. Her husband helped us with our luggage and recommended some places in the island you can't miss.
Now, the house was something else! It is beautifully decorated with cyclade details, sparkling clean, and lots of natural light. The cleaning lady came every other day to keep the house intact and left clean towels. The beds are very comfortable. The air conditioning works better than any Airbnb I've ever stayed (I usually have problem with A/C because I like to sleep in freezing cold), you will definitely be glad to get home after spending the whole day out during the summer. The house is spacious, the kitchen has basic cooking needs (olive oil, vinegar, pepper, salt, coffee, Nespresso machine, etc), bathrooms have everything you need (shampoo, shower gel, body lotion, etc). There is a TV in the living room as well as in both bedrooms, and they even have Netflix!
There is a boutique hotel next door where you can relax by the pool after a long day while sipping delicious cocktails. The parking is complimentary, and the steps are not as bad as in Oia. If you don't have a car, there is a bus stop in front of the street. Overall, I give a 5/5 to Christina's place and recommend it to anyone who is thinking about visiting Santorini. You will have an amazing time, and I definitely recommend watching the sunset from the garden as many times as you can.