We find there are more cons than pros to the Visor style helmets vs a standard Helmet/Goggle Combo. Though some people love them and they are insanely popular in parts of Europe.
Pros:
OTG Compatibility
Stylish (if thats your jam)
Flawless Helmet/Goggle Integration
Cons:
Wet weather performance
Availability of replacement lenses
Storage - not recommended to leave goggles in the drying room
Crash replacement of helmet requires new goggles