I've used it for a few months during the beta period. For complex files it could choke up and never load the inspect feature. When it works, however, it's quite helpful.

Your developer needs to be comfortable going into InVision and using it, though. That can be tough since they already have a ton of tools that they need to use and keep up with. It'd be nice if Inspect could export a stylesheet with your layer/group names from sketch and all of the corresponding CSS parameters.

Think he meant an actual Carrot...