I currently own a Lumia 1520, and last night out of nowhere I received one invite to buy an OPO. Since then I'm in the paradox, if I should go ahead and by it or not? I like what google have done with Lollipop, it looks far improved since the last time I've used it in the jelly bean times. OPO is also a great device taking into consideration all the reviews I've came across over the internet. I need quick advice here over the pros and cons of switching to OPO from my L1520, if some of may have done it or have experience with both the devices.