My 2 friends and I loved our stay at Gina's garden house. It is at the back of Gina's main house through a garage/storage area with separate keys so it is very private and apart from the main building. Gina met us when we arrive and there was a bottle of wine, chocolates, bottles of water, coffee, shower gel/shampoo etc etc. - she went above and beyond what you would expect from an Airbnb host.
The house is on 2 floors with the living area downstairs and 2 bedrooms upstairs (no doors but very thick curtains for privacy). We went into the centre of Amsterdam a great deal and that was only one stop on the train or 2 trams - all within 5/10 mins walking distance.
I would recommend Gina as a host - she even posted my friend's phone back to me after we accidentally dropped it in the rubbish when we left!

10 out of 10. Thanks Gina!