I switched over 6 weeks ago. to 4G . my speeds are worse now than they were on 3G . I pulled my sim card and put it in my wife phone. Again I get same results. My upload is 4G but my download is only 3+ mb max. According to PM tech support that qualiifies for 4G. Now that is gone from $40.00 and 15 gb down I will never use all my bandwidth.
All I can suggest is don't test your speeds you may not be happy.