Natalia's apartment in Gros is well presented and well located - only a short walk over the river to the old town and La Concha beach, or a 5 minute walk north to the Kursal and the Zurriola surf beach. We found the apartment easily, and there are buses and a taxi stand close by. The E77 nightbus to the airport stops just down the road opposite the taxi stand.
The apartment was clean and tidy, with good sized rooms and a large balcony which gets sun for most of the day - great for breakfast. The WiFi was a great inclusion as it really made it easy to plan our trip. There are a number of good local pintxos bars located close by, including Bar Bergara.
Natalia and Ignacio were very helpful leading up to our trip, and when we arrived with plenty of information, brochures and guide books to help us make the most of our stay in San Sebastian. Although we didn't require their assistance, Natalia and Ignacio were available in case of emergency.
The apartment was perfect for our needs.