I've been using mine daily since they were first released, and it doesn't crash or hang.
It's slow to start apps, and due to lack of updates the browser is no longer compatible with some current sites, annoyingly including some that used to work fine.
I'm in the market for something more modern to replace it, but like the GP, still haven't found an appealing replacement.
Android makes me uncomfortable due to the Google-mothership thing, or any other proprietary service for that matter,
I know you don't have to, but at every turn it practically begs you to link up with them to use it properly, and it doesn't
come with options to link to your own generic services instead.
I have an Apple laptop but the iOS walled garden is even less appealing.
But hardware keyboard is probably the #1 feature I'm looking for.
An Android 4g device with one of the current top quality cameras, a fast CPU, enough storage, and a hardware keyboard (that doesn't replace half the screen - sorry Blackberry) is probably what I'll end up with - when someone makes one.