Stopped playing Warframe, a bit disappoint that I didn't at least stay to get my Ash Frame but can't help when you stop feeling the excitement for something.
@Sanada, It's mainly doing mods on the workbench, I'm continuing Kei's project of an arm mounted Pile Bunker.
Hmmm, well, Nekros is kinda meh. A bit weird skillset which doesn't work all that well, and rather low defenses. Plus, it's incredibly difficult to farm, even if blueprint drops are now guaranteed, since it's boss is very rare Orokin Derlict thing. But looks really cool.
Valkyr was crap the last time I played. Pathetic defenses which rely completely on her armor values, coupled with a close-range skillset while being somewhat sluggish.
Unless they've reworked her in the time I've been absent, she will still be shit-tier.
Oberon is supposedly quite decent, but I haven't tried him yet. Basically a replacement for Trinity, being a support/offense type of Warframe.