Iker's place is great. Although my flight into Bilbao was late, Iker's father patiently waited at the apartment for me - very much appreciated. I would rate the apartment five stars, with some minor downsides (see below)
THE GOOD:
The apartment is well furnished, with absolutely everything you could possibly need to stay there a week - which is what I did. The kitchen is fully stocked with every utensil and appliance you could ask for. Pots, jugs, cups, glasses, cutlery, bottle opener, sieve, pans, bowls, everything! This is great for if you're looking to cook for yourself, especially since there's a grocery store 60 seconds walk away.
In addition to that, there was already a ton of food in the apartment! This was so appreciated. There was milk in the fridge, butter, even a bottle of rioja! In addition to that, there was cereal, tea bags, sugar. Not having to worry about going shopping for my first day there was fantastic.
Each of the rooms is well furnished, with enough plug sockets to suit your needs. I was travelling from the UK so you will of course need some adapters if you are too, but Iker had left an extra universal one, which turned out to be really useful.
THE BAD:
There are some minor downsides (and they are minor - which is why I still rate the apartment five stars). Most of the windows face inward into a clearing, surrounded by other windows. This means that even in full daylight, it looks as if it's dark outside. If you're going to spend a lot of time in the apartment, this might be an issue, but who travels all that way to spend their time in an apartment? Not me. It's not something you should worry about because you'll be out exploring anyway.
The ceiling and walls are pretty thin, so you'll hear everyone above/next to you walking around. This is fine in the day, but early morning if you're still in bed, it can be a bit of a wakeup call. In addition to this, you'll hear the elevator going up and down throughout the day. After a few days, you get used to it so again, not a huge issue.
OVERALL:
Iker's place is right in the middle of the city. It's a few minutes from the Guggenheim, a few minutes from the nearest metro station, seconds away from food and drink, and even the bus from the airport drops you off right by Iker's place (The bus you need by the way is the 3247. It's a green and white bus and costs 3 euro one way. Takes 20 minutes). It's a perfect location. If I travel back to Bilbao, I will be staying at Iker's apartment again. I highly rate it. Many thanks, Iker.