Ok, here's how I did the math.
Currently I'm on a 1500 Everything Family with a 23% discount and 2 lines
Line 1: 84.7 (110 -23%) + $10 Premium data + $4 insurance = $98.70
Line 2: 19.99 + $10 Premium data + $11 insurance = $40.99
Total before taxes and fees is $139.69
If I changed to a Framily plan with just my two lines and before I find anyone to share my discount with:
Line 1: $50 + $15.40 ($20 unlimited data - 23% discount) + $4 insurance = $69.40
Line 2: $50 + $7.70 ($10 3GB data - 23% discount) + $11 insurance = $68.70
Total before taxes and fees is $138.10
So I can come out better on the Framily plan, but just barely, but I get unlimited minutes which is useful for me. Then, if I find anyone else to add to my group, I can increase my savings any further.
After seeing some of the comments around the Internet, I think some people are forgetting that you don't have to be liable for the bill for everyone. I've seen people comparing it to the UMW plans which subtract $10 for each new line, but on those plans it's all under a single bill. In my case, if I were able to find 5 more people to join my Framily my bill would be $88.10, which is a very significant discount. I could even up my wife to unlimited data, which she doesn't use (but she's a wife, so if I have it she probably needs it) and only be at $95.80. This stomps the hell out of the competition for unlimited everything.