There isn't a better location in Santorini.
The pictures do not do the patio / balcony justice. With the Jacuzzi, table for 6 and reclining chairs, there is not a better place to enjoy the magnificent views. The patio / balcony is the number one reason for staying at the Seahorse in Fira Santorini.
The friendly and attentive staff make a stay here that much more enjoyable.
As a separate trip note for a Santorini stay, I highly recommend renting a car. Have one partner get the luggage while the other checks in at the rental car check in just outside baggage. The driving, although a bit competitive, suited me perfectly and gave me freedom to check out the island and its vineyards in entirety while not being on the schedule of a tour. I visited Boutari and Vassaltis Vineyards and was able to tour and taste both on the whim of our drive by visit. The roads are in good condition, easily navigated, and there is plenty of parking regardless of your destination.
Thanks Chantal... Enjoy your stay!