The eternal lament of EP is that it's really, really hard to get into because the setting is so complex. You can
probably get into it by playing it, but you'd have to be a little careful how you set the game. There are parts of it that are very CP2020 and parts of it that are entirely not like it.
At a minimum, trawl through this page for stuff like "10 Things You Should Know About Eclipse Phase" and similar stuff that's meant to help people get into the game quickly:
http://www.eclipsephase.com/resources
There are also half a dozen published modules available (again for free under creative commons) that can also give you some insights. Just ignore the mechanics and you'll be fine.