As alumni of the Deusto university, we organized a reunion in Bilabo during Aste Nagusia and Imanol's flat is really, really well-located. Communication with him was as easy as check-in and check-out which could be done autonomously. I highly recommend you book it for a nice, conmfortable stay of 4-5 days if you're a group of 8 and could go up to 9 or 10.