Rp 1,000 for room with air con and Rp 800 with fan.
Hotel have backup power generator, you will at least have a fan and light when there is a power outbreak. Cheap restaurant in the hotel and 24 hr armed security guard.
Don't look down on the carpet, whether you are in the lobby, restaurant or your room. No internet or wifi. There is a cyber cafe behind the hotel inside a small alley.