The rechargeable battery in the main unit lasts only about an hour before it runs out and turns off.
When attached to the helmet, there is a big gap between the helmet and the main unit, leaving room for moisture to get in between.
The remote control on the side of the helmet pops off easily when you operate it while riding. I've almost lost it twice already as it just popped off.
Not the quality I would expect from Schuberth. I have send them a request for an RMA for the battery issue a week ago, but haven't heard any details yet. I'll update the review once I do find out what the resolution might be. Sierra was not interested in taking the unit back and told me to work it out with the vendor.