Some of my Steam friends were playing the Hek out of this game last year, but I was into other stuff and never joined them. Finally decided to install after looking at some of its artwork (which is fantastic, needless to say) around March this year. I had just finished Borderlands 2 with Zer0, so my obvious first 'frame choice was Loki. Can't forget how bad of a Loki I was. I'm pretty good with him today though, hah.
I think Warframe has impressed me instantly on my very first mission. Loved the Grineer (took me a while to find out what they were called, blame it on the name of everything