I had the same experience as others above last week, sure its not the greatest but, being it was IO, and I had an alert, even though short, it still was pleanty.

1 dot Ka, I slowed, alert went away, in traffic, guesstimate of 1/4 mile later, other side of divided median, a freaking Charger, rarely see those, not sure where he belonged to but I saw the antenna on the dash. So with a little hill (overpass) and curve and traffic and other side of divided median. The 10+ seconds to slow before being in view of moving IO, hey it alerted, thats all that matters.