Maria's house was very lovely. It was in a great location near the centre of Oslo and there were all the amenities nearby that you would need. The house was beautiful and the room that we stayed in was much bigger than we expected with a TV, Netflix and a really comfy bed.
Maria was an amazing host. She gave us lots of advice about the city, she provided breakfast foods and even, when we had issues with meeting with our friends, said we could stay an extra night for free. To top this all off, when I left some items at her house she said she would post them to the UK for free too!! She was lovely and so were all her family.
I would definitely recommend staying with Maria for anyone travelling to Oslo.