The hotel is inside the national park, so you have to pay the entrance fee immediately (220k). But you can spend as much time as you want at Bromo because is it walking distance. Just go down the road and there is Sea of Sand, go directly to the temple and you can see the stairs up to Bromo. I think you can walk to sunrise point too, but we choose tour for that. It's cost 450k/car (short tour include crater too) and you can reserve in the hotel, just like the transfer to Probolinggo train station (450k/car). Both were in time. The accomodation is good, simple, the shower is next to toilet, not separate, but we could handle it. We didn't have water at the evening, but they fixed it immediately. Breakfast was is buffet style and was delicious (indonesian food)