Don't get too excited. Others have seen this, too-- and it appears to be just an old graphic that hasn't been updated. After renewal, look at the countdown balances showing: everyone else reporting has seen the 250/250/0 countdown balances.
Sure-- I used FreeUP for my primary line for a number of months, paired with whatever best option I had for data (in a dual-SIM phone.)
Since I use Google Voice as my outward-facing number, and GV for texting, my original 500 talk OR text was effectively 500 talk/unlimited text through google voice, and whatever for data. (FreedomPop basic when I didn't have anything else, a Tracfone promo, Mint, etc.)
I still Use FreeUp as my main phone. I have the 15 bucks a month for Unlimited talk and text and 1 gig of data. I had saved up about 130 bucks of points (credits) so the 15 per month will last me a good while at no expense to me.