Amaia's flat is a great choice. We actually had the entire place to ourselves for five nights because she was out of town. It was very clean and tidy, well equipped, and in a great neighborhood. You basically have your own apartment downstairs. Lots of space to spread out.
Amaia is a wonderful artist and has her works hanging all over the apartment which is wonderful. We finally got to meet her on the last day and very glad we did. Check in and out couldn't have been easier, and she suggested a lot of great places to us.
The cat Tuesday is also a delight to have around. She greets you at the door when you come home every day. The only complaint I have is that by the fifth day the kitty litter started to smell very bad. BUT I don't think this will be a problem for any other guests because Amaia would normally be there to change it.
A wonderful place. Can't wait to come back.