Bring earplugs and an eye pillow if you are staying in the female dorm. It is NOISY the female dorm and the private rooms are right off the main area where people are talking, checking their e-mail, checking in and coming up from the showers. Worse yet, they run this place Army barracks style, meaning they blast the lights on at 7 a.m. in the dorm room, which is hell if you're sleeping in the top bunk. Also, they don't dim the lights in the main area at night, so each time someone enters or leaves the female dorm, the door squeaks and the light floods in.
Those points aside, this is a lovely place to stay. The hostel itself is beautiful and you couldn't ask for a more scenic setting. Hiking trails up the mountain leave right from the hostel door. There's plenty of parking, a friendly atmosphere and it's clean.
I stayed here for a week in the summer. After I bought earplugs (they sell them at the front desk) and the eye pillow it was fine. The male dorm area is downstairs by the laundry facilities and I imagine it is quieter there.