I've had REOs 3 yrs next month. 24mg first two years, past year 18. Although using RBAs since 2012 many times, using RM2, I feel the need to drop nic some. So some days I'll put a little no nothing PG in REO bottle to lower nic and flavor; just a little. I keep one REO loaded with no nic/no flavor VG and it is a nice break from nic and strong flavor.