Buy for a Quieter Keyboard
Apple's faced backlash over the butterfly keyboard in the MacBook Pro, but things don't dramatically change this year.
The 2018 MacBook Pro keyboard is a third generation of this key style, and Apple is making a big deal about it being quieter than the older generations.
The 2016 MacBook Pro keyboard is obnoxiously loud, so this is a very good step, though we don't know exactly how much quieter it is until we get to go hands on with the new model.
Apple keeps the same style of mechanism, which offers a more stable key, but you can expect the same very limited key travel, which means you will bottom out and feel like you are typing into solid metal pretty often.