Isaac is a wonderful host! Not only did he allow us to arrive earlier scheduled at his place, he also took the time to familiarize us with all the best Bilbao has to offer. Before we even got there, he helped with some Athletic Bilbao tickets that were next to impossible to buy online.
The apartment is very nicely appointed and contains absolutely everything a traveler could ask for, most importantly comfortable beds and an amazing bathroom! It is situated immediately across the river from the old part of the city, where many of the best Pintxo places and bars can be found.....very convenient indeed.
I highly recommend Isaac's place and will certainly try to come back when I return to Bilbao.