As a Construct 2 user, who has been keeping track of Spriter even before the Kickstarter, I have dabbled with it quite a bit, though I haven't tried something serious until now. I'm hoping to try using Spriter animations for my most recent project and my more original ideas (which I'm building an engine in C2 around), but I feel I'd need help in order to achieve that.
Well, I've been trying to create a placeholder animation thing for human characters in Spriter, using the existing platformer essentials animations as a base and drawing the parts in Inkscape to create this featureless 'green man' with more realistic proportions compared to the platformer parts (once again using said parts as a base, while redrawing them to conform to the new proportions) - I'd use the default parts, but I'm not terribly fond of their proportions, even the smaller head isn't small enough. The end result ended up breaking the existing animations, so I might as well start from scratch. Oh, and the character I made has a proper animated neck, too. The idea was sorta to create a 'Tron' like character with minimal features.
And then I tried to animate the parts. The idle animation seemed to work reasonably well. The walk animation... Eh...
Ya see, this is why I'd much prefer having a proper animation person to work with, haha. Even the parts don't look terribly good!
Edit: Tried to modify the walk cycle to get the head/body bobbing up and down, and... Huh, it looks much better, now.