In my daily travels I have 3 Speedtraps stored in my 9500i. Last night the Speedtrap announcement saved me. I was approaching a known speedtrap, the announcement came on and started the countdown to the location. It was dark and I was the ONLY car on the road. As I crested the small hill before the speedtrap I could see the reflective stripes about 300 feet ahead on the crossroad. Sure enough, BAM!, hit by K band I/O.
If I had been using anything else, it may have had a different outcome.
There was no warning, no distant sniff of radar, there was no traffic. After using the 9500i for about 8 months, I really feel, for my needs, there is nothing that matches the feature set.