Currently have:
Blinder HP905
Stinger VIP (Rader only)
Beltronics STI
1. No i haven't received anything (Touch wood) secondly i try to do my best by behaving on the roads but there are moments where we all get carried away or miss a speed change. Mind you the Blinder has saved me on 3 separate occasions against the LTI trucam on VPN mode i think.
2. I sorta like to know where and when i get pinged or speed checked

So far been very happy with the Blinder HP 905, get enough warning against front facing poliscans and Trucam, but forget it when it comes to Rear shots