I'm really satisfied with the 9500ix, it smokes the 34.7 Ka in my area even if it's forward facing. K band is even more sensitive, I had a huge save with it on a road with alot of curves and while it was in a truelocked area! It's alot more sensitive than my X50 was on 35.5 as well. Also, I had 2 laser encounters with it (stalker lz1, prolite) and they were both within 500ft and it detected both of them, alerting as the same time as my LI , my X50 would usualy alert on the 2nd hit after I cut the LI off.
I feel like I need more 35.5 Ka protection, though. It's good with off-axis 35.5 but really bad with forward facing and I/O 35.5. I'm probably going to buy an STi-R, sell that and my 9500ix and buy a 9500CI, if escort fixes that ramp up! haha
My favorite part is that I don't have to press mute 20 times a day just because 2-3 cops in my area use K band.