"We couldn't find it at first because it's part of AMU Plaza; there is a (slightly hidden) entrance next to the Station with a direct elevator which was helpful but hard to find. If you don't find that entrance, then take any elevator to the 7th floor and find the only elevator that goes to the 9th floor.
Once you find it once its pretty easy.
The hotel is beautiful; you can see why it is a wedding spot. The room was nice and quiet. We didn't try their restaurant, choosing others within Amu Plaza."