Gina and her husband are nice hosts. They are very chilled, easy-going and opened to chat. They gave detailed instruction about the amenities, and have stickers to remind guests about some important stuffs as well. Their place is central (around 15 minutes by public transport to the central station), and the area in general are not noisy, but their neighbours can be a bit loud at night. The place is clean in general, but not at a hygiene-freak level. The kitchen was a little messy when I was there, but I did not cook so it was not a big issue.
I recommend this place for travelers who want to stay in Amsterdam centre with chilled hosts.