Controller help..

Hello there ! I'm about to order big ox cnc kit, as newbie not know much about drivers and programs so I ask for your help and experience. in the parts list I see ---
TinyG Upgrade:
Add a TinyG controller to your kit(+129.99)----- ( is this one better than CNC xPRO or gShield for this ox router ?)

Also wich software should be ok ? SketchUp-----SketchUcam ---GRBL ? ..definetely I don't like chillipeppr ..I don't want to be hooked to internet every time I want to run my router.
It...

Controller help..