We had a generally good experience as we saw lots of monkeys in the water and interacting. Just one word of warning there is another troop of monkeys as you start the treck (Its is a fair walk up hill) to the snow monkey pool. And if you are carrying plastic bags they may target you thinking you have food so only take a back pack fully closed. I personally was a bit disappointed at the general condition of the pool area and environs but as my wife pointed out it's a dynamic area subject to heavy water flows etc. I did however like the use of public transport to get to from the temple and monkeys as you get a really good feel for the real Japan. Our guide was friendly and helpful and the day went smoothly.