A new app 'AltTab' has fast overtaken Contexts as a much loved alternative:
But I don't really need the images of the windows, a list is much more efficient than a 5x3 grid of large images. And the quick switch esc+key is sorely missed.
I'll keep an eye on it though, thanks again for the rec.
I've already helped out and contributed a bit. Recommend to start Github issues for any gripes right away.
Not sure if he offers a non-grid list mode though. But he's open to new ideas.