Despite the previously mentioned and failed post about this game I feel the need to replenish its roots.
Warframe is a digital reincarnation of ME3's MP with flare. As a huge fan of ME3 MP I think I feel fine in backing such a free to play game such as Warframe.
This game has repetitive levels and repetitive enemies but honestly if ME3 had the content and leveling/crafting variety of Warframe, I would still be playing it. This game is just outstandingly good in all forms for being free. Like seriously, it's free. Play it with your friends in a group for free. Earn more abilities and grind out new suits. It's Ninjas in space. Come on.
The graphics are sick (reflective and shadowish - is that a word?) and the gameplay is ME3.
The best I can say is try it out. It is fun solo but a blast co-op. And it cost jack shit.