If you're only after a power adapter for your X1C6 + iPhoneX then this Anker device will certainly work.
I would however wonder if you really need 100W power, 75W would seem sufficient.
Edit: if you plan to use a USB to lightning connector for your iPhone X then indeed the 100W is needed as apparently this device splits power evenly (50W+50W) between the two USB C. A comment however says it's not fast charging the iPhoneX when they are both used, so now I understand your dilemma.
That looks like a dream, but I'm wary of trusting a newcomer on delivering a dream.
Apple's entire game is making things small and making them work well. Why are Apple (who has unlimited funds to throw at this), Anker, and other established companies unable to make something like this, but this newcomer is?
Hyperjuice is not a newcomer. They’ve been building such products for a long time and almost all major launches i’ve seen have been through crowdfunding platforms. Product reviews are almost always mixed though.
Anker makes a 100W charger but its ginormous compared to this one. They probably might be building a smaller one. Apple won’t build this product ever because its a very niche product. Most people don’t need this kind of power/setup.
If someone happens to have experience with this, share your thoughts please!