If for you it is a matter of customization go ahead and use whatever you want.
I am speaking about the rock solid base (first of all the package manager) over which Arch and other serious distributions (Gentoo, Slackware, Alpine...) are built. Also their communities are made by compentent people. Manjaro is born to make easy something which has its own complexity: in my opinion this is exactly the opposite of the Arch KISS philosophy.
If for you it is a matter of customization go ahead and use whatever you want.
I am speaking about the rock solid base (first of all the package manager) over which Arch and other serious distributions (Gentoo, Slackware, Alpine...) are built. Also their communities are made by compentent people. Manjaro is born to make easy something which has its own complexity: in my opinion this is exactly the opposite of the Arch KISS philosophy.
I don't really want to try Arch on my main machine as It is my only machine.
So will persistent bootable USB with arch Linux a good start?