I've actually had surprisingly good luck with their AT&T LTE sim. I use Google Voice as my primary phone number, so as long as I have an internet connection, I'

I've actually had surprisingly good luck with their AT&T LTE sim. I use Google Voice as my primary phone number, so as long as I have an internet connection, I'm golden. The Freedompop sim goes in a burner phone that I take to the beach or out on the water. The trick here is to realize that they are basically a scam company and treat them as such. I used a temporary credit card number to prevent any unwanted charges. As long as they're willing to give me a backup LTE connection for free, I'm willing to take it. When they inevitably implode, oh well.