Mostly recommended.
Here's Two tips: 1) Have the WIFI credentials available offline in advance, as there's NO cellular reception in hana.
2) Near Hotel "Travaasa" (1.7 miles to the south on the main road) the hotel WIFI is available outside all around. So use it in case of emergency.
Walls are very thin, but after doing the whole road to Hana, you're so exhausted, so it may not disturb you.
Not much to do there after 7 PM, so it's better to sleep and wake up early.
I will return!