I use this, a wireless keyboard/mouse, and a presentation remote, along with my projector to make the most portable and easy training set up... no need for a full computer.  I just loaded Office 365, and about 300 of my powerpoints onto a 32Gb SD card... I use a USB hub to give me 4 USB ports (need one for keyboard/mouse and one for presentation remote), plus I can insert a thumb drive, if any students want a copy of the presentation.I bounce my wifi signal from my phone, and I installed an animated desktop wallpaper off steam.  Everything works flawlessly.  And for power, I plug the cord into the USB port on my projector, so it eliminated the need to carry an extra powercord.  I love it!