Sorry but the Ubuntu Wacom Gui tool doesn't offer enough options to fully make use of the device, button (re)mapping e.g is not supported, and and you really want to disable/configure the weird touch behaviour and defaults of the device for working without annoyances, or for using it as a mouse replacement.
I bought a Wacom Bamboo Fun Pen & Touch a few days ago hoping to get full support without googling around for days and getting dirty in the terminal and heavy text editing.. but exactly this is what you have to do, otherwise the device is almost unusable for any serious work. Take that in mind before paying the extra Wacom price compared to other brands. You have to get dirty with text editing anyway, it doesn't matter if you use Arch or Ubuntu, or if you buy a random UC Logic Tablet or Wacom one, to use the device like it should be used a similar amount of self effort is required, and this can put a lot of people off.
If Canonical want artists using other OS switching to Ubuntu, they NEED to make a proper GUI tool for those widespread devices, or artists will return to other operating systems immediately.
If you're comfortable with text editing/scripting, the options to configure the devices are great though.