I am using blackberry z3 for couple of months.I am using this one phone that is with limited people.In my surrounding no one has this blackberry. Amazing phone.looking great. I have updated software through computer.working excellent.blazing first internet, android apps can be downloaded from open source. Touch browsing speed and build quality is impressive. Most important thing is it does not need to use BBM plan for internet use.I use normal daily internet plan.I didn’t find any downside of it yet. Running smoothly.