I'm an Android geek so I can help ya if need be. I've been using my phone with Viper4android (insane app for audio effects and tweaks) pretty much for the last few hears, aside from PC and dedicated amp/dac. Look forward to having a portable music player again!
Side loading isn't too hard and the Android version on Explorer should be pretty self explanatory for most things. You'll just have to get used to swiping down for notifications, adjusting volume in-app vs the Explorer knob itself (don't have mine yet but this was brought up earlier in the thread by someone who has gotten his/hers), navigating settings menus etc.