I have been doing some research and no doubt service availability will be a huge deciding factor as they run on sprint towers. These guys are 100x more transparent about what they do and how they work. That I like.

a good comparison of them and the other similar competitor is here and talks about both quite well. https://ting.com/blog/ting-on-republic-wireless/

check the Howard Forums, they have great service reviews.

http://www.howardforums.com/forumdisplay.php/34-US-Carrier-Discussion

then make sure you dont load this

https://citizenlab.org/2012/08/the-smartphone-who-loved-me-finfisher-goes-mobile/