5 / 5 Shinsetsu #1 & #3
My family of 4 recently stayed at Shinsetsu for 10 nights. The above ratings are for Shinsetsu #3 and for the way Holiday Niseko dealt with a few issues we had in Shinsetsu #1 and with lost baggage.
Shinsetsu #1 is a 2BR/2BA aptmt that, judging by the photos, had all we needed. The apartment is nicely furnished and comfortable and the ski drying room downstairs and free communal washers/dryers were great. But there were some issues. For the first day we had no heating. This was resolved satisfactorily on day 2. The main issue though was that the master bedroom located downstairs has no door on it and there is no simple way to add one. The photos do not show this. As a result, all noise, light etc from the kitchen and open plan living/dining room floods into the bedroom. This meant that sleeping was difficult unless everyone in the aptmt went to bed and woke up at the same time - not really practical with teenage children. Fortunately, Holiday Niseko was able to move us after 4 nights to Aptmt #3, which has 3BR and most importantly, a door on each. This accommodation was fantastic - warm, nicely furnished, all essential kitchen items and kids appreciated Netflix on the TV.
The location of Shinsetsu is very convenient, being 5 mins walk from the Ace Family lift and 3 mins to Seicomart. If you rent gear from Larry Adler at the base of that lift you can leave it there each night and stroll up and back each day before/after skiing.
Holiday Niseko also helped us out with a lost backpack which had been left on a train in Tokyo. They made a couple of calls (in Japanese) to the rail co, located the bag, had it transported to Hirafu and a friend collected it for us (after we had left). This was very much appreciated and their approach was very helpful and accommodating throughout.
So despite a rocky start I would highly recommend Shinsetsu #3 and Holiday Niseko. Shinsetsu #1 may also be fine if you don't mind the doorless bedroom issue.