I've used a 9300 for about a month now. I can't compare it to the 9500 because I never used one.
It's a very nice tool if you're on the road most of the time. Excellent browser, incredible colours and loads of applications to chose from.
My only concern is that I've learned it's supposed to have a ssh client as well, but I can't seem to find it or use it.
Anyway, it's a very nice tech tool if you're traveling or have work in different locations. I'm probably not the best person to ask about this, as I use it about 20 minutes a day to connect my laptop to the GSM network and that's about it, because I really hate the small screen for browsing the web.
If you can afford one (not that cheap compared to other smartphones), go for it. Worth every penny if you use it to the max.