Watch some playthroughs on YouTube or Twitch to get a flavor of the game. Just be aware that most predate the Summer Patch that broke the improved UI mod that most use and introduced bugs that still are not fixed. The UI mod is mostly working again. We're hoping for another patch in late October to fix the new bugs and add other improvements. Of course they'll probably break the UI mod again, so maybe check back around Christmas when Steam will probably have it on sale.