According to this review, there is a bit of a drawback in the 8-speed automatic trans, which is admittedly a bit of a killjoy at times. However, it works well to keep the engine in the efficient range, even at the expense of dropping a gear quickly and getting the engine in to the peak of the power curve at certain speeds.
The ultimate point of the video was to help viewers decide if it was worth picking up the 2018 Centennial Edition or waiting for the 2019, which as we all know will get a nice overhaul and a number of new features.
While the host has some positive things to say about the special 100th edition truck, he ultimately decided it would probably be worth the wait to pick up the latest iteration of the Silverado.
Of course, a review like this is totally subjective and a decision on which truck to buy should be made by more than a YouTube video, but this is a great place to start gathering your data for making you decision.