I haven't tried the L2 search, I set my route while at home and I could see roadworks and traffic displayed on the map. I was notified of speed camera's on route but there was no heavy traffic or delays, I traveled in the U.K from Pontypool to Penarth via the M4 and jct32 going and Penarth to Pontypool via the Butetown Tunnels and A48M on the way back. I have the app set to show 4 different routes, using my Note 4 with most of the defaults settings bluetoothed to my S8+ to access data although I would not expect much traffic in my neck of the woods as roads are very quiet. The route in both directions was checked against the S8+ running the TTGo app by DFox and both apps offered the same information. Hope that helps
The Note 4 is basically just used as a satnav and trying new apps.