Thank you for your honest review. We have advertised it as a self contained unit because the unit has all that is needed, in itself: which is your private bathroom that is not even visible to anybody on the first floor, kitchen, private living room, porch, garden etc. We are very surprised that the 4 guests on the top floor asked to use your bathroom which is separated by a private door. They booked 2 rooms with 1 bathroom and we very clearly had explained to them what they can access and what they can not. After you left, we stayed with them in the same villa in this unit for 9 6 nights, they did not even know there was a bathroom downstairs. We are also surprised that you had to repeat the same thing to the same guests frequently. To enter the building, there is only one entrance, so we hope that we have not misled you because we never mentioned a private entrance.