We stayed for more than 10 days in Ibon's appartement. We liked the place a lot, especially because you feel that it is a place where not only guests are living. The appartement is equipped with everything you need. The location is perfect to go to San Sebastián, because the Euskotren station is in 5 minutes walking distance. Trains go frequently and it takes only 15 minutes.
Errenteria itself is also a very nice and lively town with bars, cafés and shops. There are barely tourists in this area and it is a real authentic place, which we appreciated.
Last but definitely not least, I would like to comment on the interaction with Ibon. He was very helpful and quick in response. We went out twice and got the opportunity to enjoy a great time together and learn a lot about the area. So thank you for all this! We can only recommended to stay at Ibon's place!