Check in and check out were smooth and hassle free. We booked two rooms, one was king and one was a twin room. However, please note that this would be at the hotel's discretion as it depends on availability. The hotel staff were helpful and friendly. They would greet you as you enter and ready to assist when needed.
Rooms were clean, nicely designed and new. It would be great if the room included a dressing table though. The beds were comfortable. Toilet amenities were provided. Bathroom's maintenance could be slightly improved but overall, still in good condition. The best part about the room would be all the snacks and whatever you can find in the fridge are free! In fact, they would even replenish the items when they clean the room.
For those that enjoy Indonesian food (which I do), food options are plentiful and delicious but for non Indonesian food lover, you may be slightly disappointed as the options are quite limited.
The hotel is located near Malioboro Street, a place you could shop for batik (majority) and other knick knacks (like tshirts, etc) but not exactly walkable. So, you could opt for Grab, the hotel has a Grab order machine at the entrance.
All in all, my family and I had a great time staying at Harper and we would definitely stay here again when we come to Yogyakarta.