I went with NEGARA Guide. My trip to Bali was short, so I opted for a guided tour. I booked a hotel in the Nusa Dua area, and there weren't many tours that started pickups from there. Usually, tours start in the Canggu or Kuta areas, so it was great that this tour offered pickup from Nusa Dua. The driver was kind, punctual, and drove safely. Since it was a private tour, they adjusted the free time to our schedule, which made it very comfortable. The travel time was long, so the time spent at each location was relatively short, but it was more beneficial to combine Ubud and the South Bali tour into one trip. If I come to Bali again, I'd like to try other tours as well!