Just received a 9500i after using an STi for about 2 years, and have spent a fair bt of time with it over the last few days. It's a 2907, and will be sent in for an upgrade shortly, so my apologies if any of this is fixed with a code update, but the two big things I've noticed are..
1) The marked location alert is way, way too far in advance. I live within 1.5 km a 2 camers and 1 speed trap, I can't even leave my place without the detector alerting to them. Needeless to say I've unmarked these locations. As well, even if I am not going through a marked location, anytime I'm on a road anywhere close to it it starts alerting about it. Instead of 1.5km, I think about 600km would be far more useful. There are several places, where if I have marked ALL cameras and speedtraps, there would be several alerting at once due to the large alert distance.
2) Anyone else think the marked location alert should STOP the moment it realizes you are moving away from a location instead of towards it? It alerts 1.5km before, AND 1.5 km after the location. This is silly.
3) It would be nice if direction played a role in marked location alerts. IE, traffic cameras at intersections here are usually only capturing one direction of traffic (same with speedtraps on most roads with medians in the middle and the spedtraps only in one direction on one side). The GPS should be able to determine your direction and alert accordingly.
4) I was fortunate enough to find a checkstop with 34.7 Ka radar constant on lighting up the entire area like a Xmas tree. Both detectors picked up it from well over 2km away. I did many passes, and experienced the 9500i ramp up issue quite readily. But I also observed that the STI was far more sensitive when the radar was behind me than the 9500i; the 9500i would often lose the alert completely when the STI was at about a 4 or 5. Moving towards the radar source, they were about equal. I am curious as to why the difference, I wonder if the GPS gear in the detector blocks some radar signal coming from the rear from hitting the sensor or horn? Odd. Another odd thing, is that the 9500i reported the Ka @ 34.714 and the STI @ 34.728. I guess one or both is a little out of calibration, not that it really matters though I guess with such a small variance.