Auch I just got tempted to try InVision recently, but now you make me all sceptical. Especially from your experience/frustration of using it with clients.
Invision is a fantastic tool. It just doesn't scale well when you have a large organization. I'd still recommend it. Try it out it's great for small teams, but it needs a big update to solve the "non-designer" can't figure tool out problem.
Auch I just got tempted to try InVision recently, but now you make me all sceptical. Especially from your experience/frustration of using it with clients.