Blackberry - Pearl Flip Cell Phone Review

I have a little bit of mixed feelings about my blackberry pearl flip.  I love the idea behind it and all of the features.  The camera and internet abilities make this phone the best that I've had.  However, there have been many technical problems with this phone.  First, as a t-mobile customer, the sim card seems to always come loose or become invalid.  I have had the sim card replaced, and it still occassionally does this.  Second, the screen sometimes decides to go completely black or white and not come back without taking the battery out and restarting the phone.  Third, when you do take the battery out and restart, it takes more then 5 minutes for the phone to restart... which is a pain because with the sim card problems and screen problems, this happens ofthen.  Lastly, the automatic updates create times where the phone is agonizingly slow.  The stupid hourglass/timer thing doesnt go away from the screen and when that happens you cant really do anything with your phone.