I actually just stayed at the resort. It's a wonderful experience. We actually flew into Puerto Vallarta and it was a 3 hour drive away. You don't really want to take a taxi- it will be over $200. It's actually a fun ride- you should just rent a car. Otherwise, if you fly into the Manzanillo airport- you are only about 30-45 minutes away from the property and the property would probably pick you up.
The actual resort is gorgeous. There are 29 villas. You are sort of stuck at the resort- there's not really much nearby. If you like lounging, golf and tennis you should be ok.
The restaurant is excellent. The one issue with the property is that there are many raccoons roaming around. If you're not comfortable with animals this place is not for you.
Have a great time.