As a family of 5 it's difficult to find suitable (and relatively inexpensive) accommodation so we were pleased with this place! We booked this apartment as an alternative to nearby hotels and found the accommodation much more flexible. It was a bit tricky to find so make sure you print out a detailed map.
Our apartment block was at the bottom of a steep hill, and part of an aparthotel complex. We visited the hotel for a very good buffet tea - all you can eat - including salad bar, meats, fish, pasta, bread, soup, chips and desert, with a bottle of wine and water all for 12 euros per adult and children cheaper/free!
The apartment was clean and comfortable - nothing flashy, but had all you need for a night with plenty of towels and clean bedding. We used the pool near the hotel but later discovered one next to our apartment. Very quick into Santander too so ideal to catch the ferry.