First things first, the hosts.. Marlot and her uncle are very friendly, receptive, helpful, and always answered us very quickly when we needed any information.
Besides, the location.. Joordan is simply the best area to stay in Amsterdan.. And the apartment is really big (specially when considering the city´s standarts) with more than enough room for 2 people to stay confortably, with essencially all the facilities you may need (wifi, good shower, frigobar, even a washing machine.. we just missed a microwave).
The only drawback is that the appartment is on the 2nd floor, so you´ll have to go up and down narrow, slop steps everytime you come in or leave it. Not really a problem for me (I was travelling with wife and a baby) but if you have any locomotion problems maybe it´s not suited for you. But again, I guess it´s the sort of thing you´ll find in almost every residential building in central Amsterdan.
To make it short.. our stay was great, Marlot and her uncle are really nice people and I´d surely stay here again and recommend it to my friends.