During my stay I did not meet Patri And Carlos, but their friend Alba met us and was really friendly and helpful. The apartment is almost in the center and very close to underground station, so there is no problem to find it. Room was clean and light, same as you can see on photos.
Those who wants visit coffee shop better go 20 steps from the door to "Trinity", where you find better price and more friendly staff then in tourists streets ;)
In sum we really enjoyed our time in Amsterdam and had
comfortable rest in the apartment. In case of such
opportunity I'll definitely revisit it.