I know this doesn't help too much, but I am new at this as well.
I bought this as well a couple weeks ago, it pretty much worked with all the examples for me. On the wiki at seeedstudio, there is a reference to a changed chip, and the demo code THERE has a statement that doesnt work. It's basically a "if it's using this chip, do this else do that"
The statement that checks for the new chip doesnt work at all, I removed all of it, basically leaving the contents of the "else" clause and that worked.
I did NOT have to do that with the included library examples however.
I wasn't able to get it to work on my MEGA, but I think my mega may be having issues as it isn't working with a couple other things.
The text output is sure primitive with it it seems, at least if you simply want to print down the screen.