We are in our 60's and this was the perfect location for us. Easy walking distance to Cathedral (20 minutes). All of Centro district and many tourists sights accessible by foot.
B&B is just as photos depict it, PLUS many very nice amenities. Clothes/Dish washer, coffee maker, two TVs, (one w/ DVR). Wife was very pleased to find hair blow dryer in BR. Place is clean, bright and quiet.
We forgot our keys one day and Cris offered to come right away to let us in. We were going out for lunch so we met her at B&B later. She let us in and answered any questions we had after being in a new country for a few days.
The couch/futon was comfortable and the master bed room is very large with lots of closet space.
Th kitchen is very nice, and well stocked with dishes, pots, pans and utensils. Also fans are available and the laptop computer and Wifi were a big help in touring the area.
We highly recommend this AirB&B for a trip to Seville. The Apt is lovely and the hosts are very helpful, friendly and very kind to us older folks who do not have a full grasp of all the modern technology.

My wife jogged every morning next to the river. We rented bikes and rode there too. The Tower of Gold is very close and a good meeting place when in town.
Seville is beautiful and it was "unusually" warm in May 2015 but it was a dry heat and we were not uncomfortable outside or in the B&B.
On a scale of 1 to 10 we give this a ten.