Are you talking about data above the 21GB limit on their "unlimited" plan or the 2G data you get after going above your data limits on the lower plans? I only

Are you talking about data above the 21GB limit on their "unlimited" plan or the 2G data you get after going above your data limits on the lower plans? I only pay for the 1GB plan but I haven't found it unusable when I go above that and I can buy a one-time increase if I like.