We're on Best Effort too, for about 3 months now. No complaints at all, I don't get hung up about speed tests and all because they'll vary widely. Where the rubber meets the road is what counts, and we can actually use our Fire stick now for something besides an ornament. We probably stream 70 percent of our TV, my wife especially, and no problems. Maybe three times we got the spinning wheel of death briefly. Personally, going from a crappy cellular internet to this is like a Model T to an Escalade. If it gets no better it's 10000 percent better, and we have zero other options.