If someone provide a half-furnished house, that is fine by me. If they provide a half-furnished house and also say "hey, it comes with a microwave because I know how to fix a microwave. If you want me to fix a microwave without having to have the whole house, do it yourself, I don't know how to do that", then it raises quite a bunch of red flags about how this person understand how a house works. And in this case, yes, I will call this person an amateur. Not because of the half-furnished house, but because they presented the situation in a way that indicate that they don't really have a grasp on how houses and microwaves work.