My impression of Nusa Dua is that it is an area with a ton of resorts and you mainly go here to hang out at your resort or villa. If you are looking to just relax, then you will find paradise and solitude here in the comforts of your hotel. The nice thing about this side of Bali is that there are some pretty sunrises. The not-so-nice thing is there were a ton of mosquitoes here, so insect repellent is a must...