I went with my girlfriend to Amsterdam for 5 days and the stay at Inge's place was everything we could have asked for.
The flat itself looked much better in real life than it did in the pictures. The kitchen was really nice and I loved cooking in there, Inge had pretty much all the equipment you could need to cook anything you want. We were given access to the coffee machine in addition to any herbs and seasonings she had which was a nice bonus. The flat is very open and bright, the only down side to this was that the main room didn't have any curtains, so at night we felt a little awkward in the front room with the lights on. The bathroom was nice and the bedroom was good too, although during our stay it got very cold in there as we couldn't figure out how to shut one of the windows (our fault). The balcony was a nice addition, but we couldn't enjoy it as it rained the whole time we were there.
Inge was a superb host, always keeping contact with us whenever we needed to ask her about something. She offered to come over and help us with the window which was nice of her. She also left us some gifts when we arrived, along with a guide to the flat and the local area. Regrettably we caused some accidental damage during our stay, but Inge communicated everything to us in a professional way and it was fixed with no bad feelings between us.
Overall, regardless of some small issues I would give the stay a 5/5.