Second time here! The staff is still friendly and helpful, the onsen baths are still great (bathing under the stars at night is so refreshing!), and our room was comfortable. It said it was technically a smoking allowed room but it didn't smell like it at all which was very nice.
Ordering the ryokan breakfast is worth it for the experience as well as there being nowhere else to eat. For dinner we ate in the mid afternoom in town before checking in, and brought some snacks for the evening. Looks like the only room service besides the big dinner/breakfast meals are drinks.
Found out if you call or email a day in advance of your booking you can get a free shuttle ride from the Shiroishi Zao or Shiroishi station to the ryokan, but the taxi ride from Shiroishi station was only like ¥2200. From Zao is most likely more expensive. The shuttle can still drive you wherever you want the morning of your departure for free though. The reception manager will ask about that when you check in.