We just returned from staying at the Anantara with my boyfriend and we have nothing but good things to say.
This was our first time in Bali, and the Anantara was a perfect introduction to the country. The staff were super friendly and great to deal with and wanted nothing more than to make your stay at the resort the best it could be.
Breakfast was delicious every morning and the sunbed and pool service was fantastic. The room was comfortable, spacious and luxurious.
The location of the Anantara is perfect, as you're within walking distance to all of the good bars, beach clubs, shopping and restaurants. Otherwise, its a $3 taxi ride to get there.
I would say that the Anantara is probably for an older crowd, or those with young children as for young people there wasn't as much of a party atmosphere as there is perhaps at the W Resort. In saying this, we had a great time and thoroughly enjoyed our time there.