I recommend installing Sierra as both of these two latest operating systems by Apple have some serious issues on the blade. Today I have been working on to get the trackpad back, but with no luck only KPs.
For each update, it gets worse. Only NVMe natively was something good, after that, each update had a nasty surprise. First they removed the trackpad support in 10.13.3, USB-C in 10.13.4 (even if you insert the device before booting up), iGPU (at installation even with ig-platform-id) at 10.13.4 and 5. This continues to Mojave. You'll may need a flashlight to install Mojave...
It is not just the hacks, people are complaining about issues on their MacBook Pros. Slow, unresponsive and so on.
They truly made High Sierra as the Vista of the Mac experience and Mojave continues this thread and yet tops them all.