André Bose do Amaral
André Bose do Amaral reviewedCraft Prototype, from InVisionDesign, prototype, and collaborate seamlessly
 RecommendedPros: 

Speeds up workflow dramatically

Cons: 

Hotspot synching still has issues

Am a recent convert to Sketch + Craft, and the connection to InVision raises productivity dramatically. Large files with lots of artboards/hotspots still face issues synching up, though, which is a bit annoying.

André Bose do Amaral has used this product for one month.