3D printing is a fun and extremely frustrating hobby. There will be times where you want to jump for joy. There will be times that you want to toss the printer out the window, run outside with some spray paint, draw a pentagram around it and send it back to the fiery hells where it belongs. Most of the time you'll love it though.
I have a Wanhao Duplicator i3 v2. It is modded like crazy and I have so much fun stuff to share about all of the fun things I've learned and done.
There is also a clone of the Wanhao Duplicator i3 v1. Same frame, cheaper components. It is the Malyan m150.
Note: Almost all of this my information regarding these printers will work from version 1 to version 2.1. Most of the information will work for the 'Plus' version but in cases where I know the information will not translate to a specific model I will do my best to point that out.
I have a handful of things that I feel like I am frequently sharing on the Facebook Wanhao i3 user group. Instead of typing them over and over again I figured it would actually work better to write them up really nicely once and just share the link.