On the iPad mini, there are even already in the next room, no Internet. On our Mac Books (Air 2012, Pro 2009), the signal is not found after switching on. Only after repeated and to open the device WIFI network is sometimes found. With the Mac mini a room further have approximately every 3 days problems because the signal is not found. A reboot solves the problem but still I can absolutely recommend the device.
So do not be fooled by the good looks and leave it alone.