We booked and paid via hotels.com. Upon checkin, we were asked for a cash deposit of Rp 200,000 which is refundable upon checkout.
The room is clean, modern and not small. The bathroom / shower is also quite roomy, not cramped at all. It has a desk + chair, flat screen tv, safety deposit box, air conditioning. The toilet has a built in bidet function (cold water only) and not just the usual "butt shower hose". They give you two free bottles of water. The wifi is a bit slow sometimes, probably depends on what other people are doing.
We are staying in the new tower whereas the lobby is in the old tower. To get to the room, you'd go from the lobby, up the elevator to level 4, then walk a bit across the internal bridge to the new tower, enter another elevator to go to your level. It doesn't take very long though.
Overall we were very happy staying here. The location is excellent, and there are about 4-6 convenience stores nearby which is very handy when you need to buy a bottle of water or some snacks. It is very close to Pantai Losari, approximately 50-70 metres away. The staff was always very friendly too.