About the slicer software using, here are some video guide of how to use Wiibuilder, hope it helps you.

For the printer with wifi function, you can also use Poloprint Cloua app to print via your phone or iPad. After binding the device, you will get 500MB of storage space to store your own models. You could go to “Me>Profile” on the APP and you will see a “+” option in the bottom left corner of the page. Then you could upload your own STL format models files to the app.