Yes you can make your own plans, but...
We took our adult daughters on our trip to Japan. When they saw we were using your service, they were unhappy as they believed we could have done all the arrangements ourselves. However after seeing the quality of the accommodations, the excellence of our travel arrangements and the recommendations of the company, they were believers. The biggest change came after my daughter lost her phone on the cab ride from our ryokan to the Kyoto train station. I called the emergency number and they were able to deliver her phone to us with 10 minutes to spare on our train connection. They both swore at that point that every penny we spent was worth it.