BlackBerry Pearl 8100

Hello. I currently own a Nokia 6126 and if I have to get a new phone, I would like to get the Blackberry Pearl, but I have some questions. I have been reading on the Cingular forums about how there are users who are having trouble with their Blackberry Pearls. What should I watch out for as far as problems/glitches go? What is your overall experience with this device? Is it reliable? Feel free to add anything else that you can think of about this device. I would appreciate it.