i managed to download the app at very first date of the release (few days after ios7 release date), before the app was withdrawn the day after.. but never really use it for more than a month.. first few days, get excited to added bb pin for old friends who still stucked at bb world. then, after added,, kinda like, so what's next?
not so reliable for the chat.. the app is laggy. the update is slow,, slower than orginal bbm at blackberry. not support for sending video. too many limitation compared to whatsapp and wechat.. and nowaday, most bb user use whatsapp and wechat more than bbm itself for im..
so, bbm is way too late to catch the competition..