I had registered to attend this school for a year, but after arriving in Spain, decided not to go there anymore. It had nothing to do with the university itself. I have no direct experience taking classes there but the staff was very helpful.
However, the university is located kind of in the middle of nowhere, and the apartment they placed me in was even further in the middle of nowhere. I had to be sure that I gave myself enough time to get home before the metro closed. My host mom also left me frozen meals and was never at home. And when she was at home, she did nothing but smoke. There were ashtrays in the shower, bathroom, kitchen, living room, everywhere. She also had a "friend" living with her who went around wearing ONLY a t-shirt.
But my little experience with university personnel was not negative. They were quite nice. And they did everything they could to ensure that I had my paperwork ready. If you choose to attend this school, please come back to this thread and let us know how it went.