Valentine, the directional arrows are very helpful. It outsmarts cops when they are trying to be sneaky. I had one that said forward and as I passed him it switched to side etc, and then the front arrow went off again and sure enough there was another hiding out, I would have thought it was just picking up the other radar so it was great! I have had Escorts also and really can you go wrong with either one? I have a K-40 built in on my car (came with it) and the V-1(borrowed from neighbor to test on a long road trip) gave me so much earlier warning and less false alarms that I bought one right away.
I have used the V1 for a few years now and love it. The arrows are very useful as knowing if the cop is behind (not as worrisome)or knowing he's in front is a huge benefit, as well as the number of cops ahead/behind. I've gone through the Grapevine once where the detector went off showing multiple threats ahead. I figured it was just one and was falsely claiming multiples, but sure enough passed one and a little piece ahead another one was sitting there. Unfortunately, for laser they do nothing. I think V1 has an update that might minimize the false road traffic alerts (which are annoying).
I have a hard wired V-1. Love it...always surprised of how much advanced warning I get. FYI though, if you have it hard wired, don't forget to turn it off when you shut down the car...easy way to run down the battery...ask me how I know
I installed the 9500ci a couple of years ago, love the stealth of it, never have to worry about it getting stolen! I really like the GPS lockout feature. The unit is dead silent unless there is a real reason that it is going off. Range is much better than the cheapo Cobra I was using, no surprise. The laser shifters only have been shot at twice, and both times I saw the LEO first and slowed down, so I can't comment on their performance.