We had such an incredible stay at Hakone Suishoen. This was the highlight of our two week trip in Japan. I highly recommend staying here while in Hakone.
From the moment you arrive staff are attentive and welcoming. The rooms are beautifully decorated and all the amenities you could possibly need are provided (nespresso coffee, a fridge stocked with drinks/light snacks, pajamas, slippers, traditional Japanese robes (we loved these!), and high quality toiletries). The private onsen was wonderful, clean, and private. The grounds of the hotel are beautiful (pictures can't do it justice!). You are served breakfast and dinner daily (you have the choice of a Western or Japanese breakfast but dinner is only Japanese). All of the food was delicious and felt "Michelin star" worthy. We booked massages and the pricing was fair for the quality and duration.
We highly recommend Hakone Suishoen and hope to be back one day!