I stayed at the Amankila last year. If you have never stayed at an Amanresort, you will certainly be in for a treat. The Amankila is one of the best of all Amanresorts.
First, the architecture is fabulous and unique. The rooms are luxurious in a "non-western" way. They incorporate their surroundings and environment. They don't try to fight it. Everything about the Amankila is about being in tune with your surroundings. It is very spiritual, too.
The service is beyond reproach. I have been to many Four Season and other very high end resorts all over the world. Although they are fabulous too, there is a subtle difference between the way Aman resorts goes about taking care of their guests. They genuinely care about your well being. They never make you feel like they are doing you a favor. They have truly mastered the fine art of service to perfection.
The Amankila is worth every penny they charge. Yes it is expensive, but if you want an experience for a lifetime, go for it. You only live once!!