No joke you won't find the better accommodation/experience than this place (in my opinion). Their service is five star hotel level or more than that. I was lucky to find this place. Jon & Manex and Jaione gave me a lot of recommendations for the bars and that basically made my staying! Their room and the apartment is so clean and every equipment is so sophisticated. If someone is looking for the accommodation in Donostia-San Sebastian and there is an availability of this place for the days you're looking for, you should book it asap, or you'll miss the chance!
I will definitely revisit here. Thank you again Jon&Manex and Jaione!!!