Recently switched to Sling. I'll post my thoughts on Local Now:
1. It's slowly focusing more on weather. That's a good thing. Still, a few of the segments need to go bye-bye, like Tasty Stuff, 60! Showbiz, etc.; it seems as if they're just there to fill time, nothing more.
2. They're finally doing Weather Across America more frequently. Also noticed on the Detroit feed they're actually doing local video segments w/ TWC meteorologists now. Good.
3. There's now a 30-second radar loop. It shows a regional loop for the first 15 seconds, then switches to a metro view for the remainder. I think it should be extended to a minute, myself.
4. It needs a severe weather mode function, like what Weatherscan has. Loop the weather segment or run a radar loop - just do something.
Overall, I'd say given what it is, I'll give it a B-. Still plenty of room for improvement, but I think it's come a long way since it launched last year.