The system is very intuitive, the hub is a great idea and led to very useful notification ... Many qualities to this new system.
There are some points to improve as the GPS application but overall it's not bad and updates coming soon.
I had a scare after the first charge because the battery held 5H Standby good but I think it just because it was the first, now if I do not use it too holds 1day 1/2 and if I much use 1 whole day.