Mint Mobile is a prepaid VMNO operating on Tmobile. If you have good Tmobile coverage in your area, it will have the same reception, signal strength, etc. Right now they are offering a special deal, $20 for the first 3 months of unlimited voice and text, 5GB of data. I think that deal ends today. After that 3 month period, they have low cost plans. Their angle is that you pay for either 3, 6 or 12 months of service upfront. If you buy 12 months the rates are:
2GB data $15/mth
5GB $20
10GB $25
If you buy for just 3 months, the rates are higher. For example 3 months of the 2GB plan is $23 a month, instead of $15.
Those are the lowest rates after the $20 three month promo is over. That data is at the 4G high speed. If you use it all up, then you have unlimited at the lower speed 2G, which isn't bad for emails, some browsing, etc. You need a phone that's compatible with Tmobile or one of their other MVN)s, eg MetroPCS. They send you a SIM that you insert. I've had the service for a year, very happy with it, it's outstanding for the price. I get as high as 170MB/sec data connection, voice is rock solid. It also supports wifi hotspot.
Also they have another promo going where if I refer a person, I get a bonus and you get a $20 credit for a future renewal. If anyone is interested, post something here and we can figure out how to connect so I can refer you. I think they also have a starter kit deal where for like $10 they send you a sim and you get 100 mins, 100MB data, etc to try it out to see if the service is good for you.