for me on average, i use around 3gb/mo. This is with WIFI-OFFLOADING. however, since lte is so close to home (work) i used almost 2gigs in 1 day *without trying-few roms, vidoes, speedtests and some video* my typical use is listening to online radio about an hour a day, causal web surfing, and several youtube videos a day. Facebook is also a data hog for me. If i use btntogo (big 10 network app), i used 1.25gb in just over an hour while watching a football game (had no idea it used up that much data so fast, so ill use it mainly on wifi only)