Not happy. I never even maxed the volume out on this unit, and always removed it from dash when not using it. Whistler was willing to send me a speaker for $10, or gave me the option of having me send the unit in to them for warranty repair (which would also have cost me at least $10 for shipping). I emailed John Nolan and suggested they send me a speaker at no charge, as I felt I had paid enough for the unit, and felt gouged for having to pay $10 for a seventy-five cent quality speaker. They declined.
I did the research and replaced it myself with a 30mm speaker of way better quality.
I'll never buy another Whistler product again. Ya get what you pay for.