Only important thing Keep in Mind before scanning papers is to check and remove any metal staples (nietjes / Staples) from your papers. Because Those will make scratches on the glass plates inside the scanner.
Luckily you can replace Those glass plates Easily If They would get damaged.
So keep in mind that, When wifi mode is turned on, you can only connect 1 wifi device at the time (eg. Your smartphone).
If You Want to connect a different WiFi device (eg. Your laptop) When Your smartphone is configured to use the scanner, than you have connect the scanner by USB cable once again to your laptop and go through the WiFi configuration wizard.
The Android app itself for scanning via wifi is very good & fast.
I have used the scanner intensively for more than a month and I'm very satisfied with it.