It was a great experience. I booked a private tour for one person and felt safe and comfortable. The pre-trip instructions were very thorough, and my questions usually received quick responses. The driver, Egii, the Ijen Crater guide, Juan, the Tumpak Sewu Waterfall guide, Sulia, and the Bromo Volcano guide (I apologize, I forgot his name, but thank you to him!) were all very friendly and reliable. The accommodations were simple but clean. Although there was unexpectedly no hot water for the shower at the Bromo accommodation that day, the beautiful view from the balcony made up for it. The itinerary was packed, and while we had to leave very early each day, it was all for the sake of enjoying sunrises, cloud seas, or avoiding crowds, and I was very satisfied with these arrangements. I would recommend this to my friends.