Only 20 villas spread over large property with gardens, ponds, rice paddies, large common pool that never had more than 1-2 other people there (though we had our own villa pool), and spa. Each villa has original art collection from owner. It's luxury with local flavor.
The service is extraordinary... there's complimentary afternoon tea every day; we asked for local treats and drinks (off menu) and they obliged with different items every day of our 5 day stay. Most of the staff have worked at this property for years and there's obvious pride about this place.
I've stayed at Four Seasons Sayan and Jimbaran Bay -- Tanah Gajah wins by a mile. We traveled with our young adult son in a 2-bedroom 3,000+ sf villa -- the price was better than a one-bedroom villa at comparable international chains -- but the experience was better. You feel secluded but every available service (meals, afternoon tea, car ride to Ubud town, laundry, etc) is just a WhatsApp away (the reception desk put us on group chat with several staff members... every request was answered promptly... just blew me away...)