Well, I have had this unit for over a year now and it continues to amaze me. I used in Canada a fair bit at first and it worked flawlessly. Never detected by Leo and always gave lots of notice. Since I have moved to St Louis I have really seen the unit preform. The LEO's are much more sneaky down here and almost always use KA in my area. I commonly receive 1 mile notice, and had one at over 1.5 miles notice. I agree the Ramp up sucks, but aside from that I am amazed at the performance. I cannot even count the number of saves from the unit. If anyone is considering buying this unit I highly recommend it. It has never let me down - around corners and up hills it always picks up the KA alert with time to react.