This is right in the middle of everything. It's a short walk to the beach, shops, markets, bars, and bakeries. Its a bit further but still very walkable to the Old Town, Aquarium, Cathedral and museums. If you want to cook you will need to supply everything including salt and pepper. There are pots, pans, dishes and flatware. We found the street noise went on most of the night. With no air conditioning on a hot night, it can make sleeping uncomfortable with no breeze. So, you need to choose between relative quiet with the window closed and a hot bedroom or a bit of a breeze and the sound of crashing bottles multiple times before morning. There are oscillating fans in each bedroom which make the hear a bit more bearable!
Check in was friendly and thorough.
My one complaint was the dirty floors. They had obviously not been swept in some time and if walking in bare feet, it was necessary to brush one's feet off before donning socks or crawling into bed. Under the bed was a mass of dust and fluff too. The rest of the flat had been attended to well though.
The location, size, 2 bathrooms made this a great spot to visit Donastia.