How does straight talk work?

Can somebody please explain how straight talk works. I have an iPhone 6 through Verizon. Could I switch over with my iPhone? And if so how does the data plans go how much do you get they say unlimited but I find that hard to believe for only $45

Yea you can switch over, they will give you a number or you can transfer your number to straight talk. You can get unlimited prepaid for $45 monthly for 5 gigs of high speed or $55 monthly for 10 gigs of high speed. Unlimited data, texting and calling. Once you use up your high speed the speed will be reduced. Unlimited is exactly as it means, even tho reduce the high speed you will still get data texts n calls until the 30 days are up then you add a new prepaid card