Do you just have Sling Blue or Blue + Orange? We have Blue + Orange. It's been really nice. When I cancelled DTV, my bill was $82 and going up to $130. They offered me $100 to stay and I said no thanks. So I'm basically saving $45/month on what DirecTV was charging me and I'm getting a few channels that I lost with DirecTV when I downgraded our package.
Also do CBS All-Access. It's nice, but the thing that bothers me is the picture quality isn't the greatest. Every other app has great looking video, but CBS is lacking. But for $6/month to have access to local CBS that I can't get with Sling, but a ton of shows on-demand, it's worth the cost.
I've been looking into getting an antenna to pick up all the local channels. The only local I can't watch live is ABC, but with Hulu, we can watch all the shows the day after they air, so no real issue there.