I started off with a 9500i. I really liked it, but with all of the speed cameras popping up around here I decided to upgrade it to the 9500ix. I'm not so happy with the upgrade. I sent it back the first time for database and sensitivity problems. They said they reloaded the database and repaired the antenna. The database appears to be fixed, and the sensitivity is a little better, but it is still not what it was before I sent it in. It's going back for the second time, but the Customer Service Rep didn't seem to think there was going to be much they could do.