The hot springs area is remote, so there is not too many lodging choices, unless you just do a trip trip to soak. Hostel is older (20+ yrs), you can tell from room condition (but room is clean). Sulphur smell is strong, but that's the nature of the area. My 13-yr said in the bathroom, "'Daddy, the water is bad!" I laughed and replied, "It's fine, no worries."
Buffet breakfast (extra price) is good. On-site restaurant has mediocre food, at high price (but you don't really have choices of where to eat, as it's remote).
Hot spring facility (across the street) is fantastic!