No need to think twice about renting at Oihanes! I can not recommend her apartment enough!
First of all, the pictures give a very good impression, and it's as beautiful in real life. Second, it's perfectly located in close proximity to everything you will need to see in Madrid.
Oihane herself is lovely, flexible and very welcoming! She gave us lots of valuable tips on where to go. Be sure to check out her apartment guide on Air Bnb as well.
Plaza Mayor is just a short stroll up the street, the hipster area Malasaña not to far behind. Both Reina Sofia and Prado is also reachable by foot, as well as the lovely Retiro Park. Not to keen on walking you say, fear not! Both the Latina metro station and a bunch of taxis is right around the corner.