I admit first hearing about this i remember thinking that it was an X-Men Rip-off.
I'm So Glad that i finally realised that this isn't anything like X-Men.
First off - No Silly & Easily Noticable Costumes (with a huge H or the Helix Sign splattered on them) so they are ordinary people with extraordinary gifts.
Also Quite Possibly it has a Villain scarier than Darth Vader: Sylar.
the Villain remains as a thorn in the Heroes' Side throughout the First and Second Seasons and then takes his place as the lead Villian in Season 3.
I Must Say in closing that put these story's down into several 2-3 Hour Movies and these will be better than the three X-Men Films put together.