I agree with everyone else. I did the China ABD in 2017 with
@CaliforniaGirl09 and really loved it! It's a bit of an exhausting trip due to all the internal flights, but they are totally worth it to see all the amazing things you see there. But I totally cannot IMAGINE trying to navigate all of that and all the other logistics of this trip on my own without the benefits of a tour. ABD does a really wonderful job with the logistics, and has some really wonderful activities on this trip, also. I would highly recommend it!
I also agree that you need pre-and post-days to really have enough time for the 2 Parks.
Sayhello