Hello,
My experience with BerryBuzz has been very pleasant. I only use BerryBuzz to extend the alerts. Every 2 minutes I have it to sound an audio alert. It also flashes the default red led every two seconds or so. I can't believe this is not part of the 4.5 OS. But anyway that is my take...
Mine has been very good as well. At first I had an problem with the service light going off on its own when I would get an email or sms,but I think I figured it out. It was very annoying at first but I've learned to live with it when it happens. I love the program and it was worth the money.