It is missing a few things, like selecting a face won't let me draw on that face, which it probably should allow since it technically knows all the information about that plane (face origin and normal). And Fusion360's inset tool is invaluable for making stepped features from existing complex geometry without having to redraw and constrain a whole new set of stuff. And also negative extrusion distances, which are basically a difference boolean operation, should probably be allowed for usability. But overall I'm very happy with Solvespace.