Ask HN: how does Jigsaw compare with other SSGs?

If anyone has used Jigsaw, the SSG that uses Laravel's Blade as a templating language, how does it compare to other SSGs you've used?

In particular I'm wanting to know how well it stacks up to Eleventy: how does it compare on features? On the quality of themes? How extensible is it? How much faster/slower is it?