ABSOLUTELY NOT RECOMMENDED any people from Europe/North America, or Australia, or other civilised countries with higher standards and expectations of a 'bathroom'.
We only stayed one night during our trip to Samosir island, but I would choose definitely another place to stay.
The whole place needs a lot of renovation and maintenance.
Standard room is equipped with a wall-fixed fan (noisy to keep it running all night), but pointless because the room was no possible ventilation, due the the fixed (not openable) windows.
The bathroom is the worst thing ever in our tourist life experience. The worst public toilets next to the Eastern European motorways are better. No air suction fan, so humidity stays, mould is welcome. Toilet seat is not fixed (dancing under your noble body part when you try to sit down).
You have an exact feeling, that you just don't want to even touch anything in there, because of uncleanness and unhygienicness.
The bathroom door is a recycled door (someone trashed it out and this place got it from the garbage and built it in): size not fitting, can't be closed.
The drain pipe was leaking under the sink, which was slowly but surely flooding the floor under our feet, while we had to wait(!) minutes for the hot water to arrive into our room... Okay, not hot, but warm enough to have a shower before sleep.
The closet door was missing (Agoda photos shows that with door, but not here anymore).
Reception ladies were pushing their phones, when dusty spider webs were present in every corners of the room, dust on the bad (head part). They don't speak English, only via Google Translate.
A 'kind' guy from staff woke us up 7 minutes before end of breakfast (included nasi/mie goreng with egg) time by knocking on our door... although we arrived midnight, so we would prefer to sleep after 1,5 day flight trips. I understand his point, but still: why?
Our stay was a disappointment with lots of Cons and only the location was a Pro only.