Outcall means the therapist travels to an Amsterdam address you give; this house works no other way, at any hour, and keeps no studio anywhere.
You stay put. She moves. That is outcall. The opposite arrangement, incall, has the client travel to a flat or studio kept by the provider. This house has no such room. Every booking is a journey the therapist makes herself, from her own part of the city, at an hour she has taken.
Four things. A door she can reach, with the room number and any oddity of the building written in the thread. A bed. Hot water. Heat. That is the entire checklist. No massage table, no mat, no shoving furniture against walls.
A hotel is the usual case. A rented flat, a short let or a home all work, provided it is a real place and you are in it when she arrives. An address that turns out to be an empty kerb belongs to a different entry, false bookings.
Amsterdam, and only Amsterdam. Anywhere central is reached in the same forty to sixty minutes; on paper, no district is quicker than any other. Schiphol and the hotels clustered round the airport are by arrangement, with the journey time agreed with you before anything is fixed and a deposit in front. Addresses beyond the city are not served.
No walk home afterwards. No lobby of strangers on the way out. No unfamiliar street to find in the dark. After two hours of warm oil, being horizontal in your own room is worth more than any studio's candles.
The figure in a profile's rates table is the whole fee, with no travel line added inside the city. The route from first message to her knock is laid out on the booking page.