Onsen Hostel K's House Hakone in Hakone

It's a good place, for the first time I managed to live in a traditional Japanese style, I liked everything, I advise everyone!

I originally thought that the Hakone Onsen Hotel was too expensive and the cost-effectiveness of traveling alone was not high, so I chose a youth hostel. The experience of 3 days and 2 nights was more than I expected.
An old man received me when I checked in that day. Although he had an accent in English, it did not affect communication and understanding at all, and there was no communication difficulty.
What was more surprising was that all guests could take a hot spring bath, and there was no limit on the number of times. When checking in, only one towel for hot spring bathing was issued, which had to be reused or rented a new towel from the front desk. Unlike hot spring hotels, they could not take a bath in the morning, but in the afternoon and evening, and they were divided into indoor and outdoor areas. I experienced it on both nights.
There was no meal, but the kitchen was open 24 hours a day, and free hot water, tea bags, seasonings, dishes and pots were available. Personal items needed to be labeled and stored.
It was more than 1km away from the station, and some mountain roads needed to be climbed. Convenience stores were basically less than 100m away from the door, but there were few restaurants, so I had to go to Hakone Yumoto Station to eat.
The dormitory is a mixed room for six people, mainly occupied by European and American backpackers. There is a male and female bathroom on each floor, as well as two shower rooms. The guests are relatively friendly. Overall, the experience is good and I may consider living here again in the future.

Clean and sanitary, with hot spring facilities. 
The service was excellent
Suitable for solo travel
But the location is really bad
There are only one or two buses passing by in an hour, otherwise you have to walk up the mountain for 10-15 minutes.

This is a wonderful hostel with an indoor and outdoor Onsen. It has a lovely living area and a well kitted out kitchen with free tea and coffee. The staff are all very welcoming and very helpful. My two teenage girls loved staying here.

Just to note, it is an uphill walk from the train station. There is a bus but it is not very frequent.

Hot spring hotel. Not many people in winter. It is very convenient to walk from Odakyu Line. It is very convenient to have Hakone Ticket.

The outdoor hot spring is great.

Booked this onsen hostel last minute because I needed a room with a toilet.

I didn’t try their onsen, but the bathroom was okay—though there aren’t many amenities provided. They do offer laundry service, which you can enquire about.

There’s a lounge area available, though I didn’t use it during my stay.

You can take a bus to get there, but there’s still a bit of walking involved, and it’s on a steep incline. Nearby, there’s only a convenience store, which isn’t 24 hours.

Overall, I’d still recommend it for a short stay!

Such a good experience in Hakone, especially Onsen at the hotel.

This is the first time I've stayed in a hostel with an onsen! The onsen while small, does the job, and the outdoor onsen was really peaceful at night. I booked a queen bed for 2 people and it was spacious enough for me to hold all my belongings. Hostel staff were really friendly as well.

One thing to note though is if you're planning to stay here, getting here from Hatsune-Yumato station requires a very steep climb up the road and a trek through the forest, so do NOT attempt to walk here yourself! Take the K-line bus instead, which drops you 100m away from the hostel.

It’s cheap and affordable for the area. However, it’s located along a steep slope therefore quite hard to access. Will be ok if you know how to take public bus/taxi. We booked an en-suite room but was given a private room with shared bathroom/shower as Trip.com messed up the booking. Be careful when you book. Confirm with hotel directly to confirm.

That was a nice hotel with awesome onsen outdoors. It’s located in guesthouse village 30 minutes to all main sightseeings