I'm very happy with mine. I like the bigger screen, in comparison to the iPod Touchs that my kids have. I bought the Incredible because the iPod wasn't available on Verizon earlier this year. I like the iPhone user interface better. When my contract expires in another year, I may get an iPhone if the screen is larger.
If you’ve had it for a while, that’s fine. But a person thinking of getting one now should know it’s relatively old and not likely to be supported for very long.
I might go for a larger screen if the device doesn’t get any larger. Some of these Android phones are just too big.