Nichod

The smart snapping / guides are really coming along! Any chance we can get distance functionality from other shapes as well? I added a gif demonstrating the functionality.

Basically in Sketch it's so efficient being able to manually select nodes, and adjust their radius individually (or as a group). I've attached a few gifs illustrating what I mean.
 
node.gif
Illustrates on a simple rectangle
 
node2.gif 
Illustrates on a irregular shape

The place you are referring to is called context toolbar.
While distribution can already be put in the main toolbar I think this is a good idea as it is only applicable in this very context (plus eventually in the node tool context).

The question is in the title... is PDF / SVG export functionality fully implemented? I ask because in my test cases I'm seeing gradients, and shapes with effects getting clipped + rasterized rather then being fully editable gradients + effects. Ideally any effects should use SVG filters when exported. This was always a problem I had with DrawPlus. I often had to export out at really high DPI to remove any gradient dithering, and import it into Illustrator where I vectorized the rasterized portions. 
 
The results I'm getting right now are disappointing. Though the PNG export from a large vector files is incredibly fast, and clean. Nice work there.

Contour/offset tool will come but not in the initial release,

Mesh fills will come but not for the initial release of Designer

It's worth noting that we've got a few new ideas for the Mesh Fill in Designer, that should make it much better than the one in DrawPlus! Hopefully I'll be able to add it fairly shortly after our release :)

I'm really hoping to see the gradient mesh tool. I was always a fan of the way it was implemented in DrawPlus over how Illustrator's worked.