I travel a lot, and this was another solo business trip. I was booked into this hotel by the company I was visiting, and this was my first stay at this hotel after several visits here.
Firstly I can say from my travels I have no idea where they got their 4-star rating from! It is a 3-star hotel at most, and even missing some things I'd expect as standard in 3-star hotels eg. tea/coffee-making facilities, an iron, and electronic room safe (there was a room safe, but key-operated and they didn't provide a key...). The room I was in also looked like it was last decorated in the 1980s and the net curtains looked like they hadn't been cleaned since then.
That said, the rest of the room was clean; the bathroom also had an excellent modern shower system. Bed was of average comfort (and having just stayed in 2 different hotels in different cities before arriving in San Sebastian, I really noticed the difference). The TV channel choices weren't as up-to-date as the other hotels I'd stayed in too (both only 3-stars!). I was also put in a room on the 1st floor which directly faced onto a busy 1-way road, despite having asked for a quiet room, so I didn't sleep well :( There is free wifi but it was really intermittent and the room I was in didn't have a strong signal so I sometimes had to walk out into the corridor to connect.
As others have mentioned, the hotel is located a long walk to the centre of the city (20-25 mins) relatively close to the university quarter and the Palacio Mirador. There are some nice local bars & restaurants, but not a patch on the city centre or the Gros neighbourhood.
Staff were all very helpful & efficient. The breakfast was OK: a good selection, and at least juices were fresh, but a 4-star hotel would have provided more fresh bakery products (not pre-packaged pre-made food). I didn't eat in the restaurant, but I had pinxtos in the bar one evening as it was late & I was too tired to walk elsewhere, but they were easily the worst I've had in San Seb.
All in all I wouldn't stay here again, as there are better choices for a similar budget money eg. Astoria 7.