I've been practicing meditation for 32 years, starting with TM in my 3rd year of medical school. I became aware of brain wave entrainment just over a year ago and came across LifeFlow while I was on level 1 of another programme.
The LifeFlow package looked like more advanced technology and cost less than the one I was using. I knew I was enjoying what I was experiencing with the other programme so I bought the whole LifeFlow series and I have never regretted that decision.
I use it most days and it is still a delightful surprise for me to enter the "zone" where my breath frees up and I literally bathe in the energy of life itself.
By "delightful surprise" I mean to bring attention to the ease and consistency of the experience. Ease in that it is such an easy thing to pop in some headphones, switch on the track, sit back or up or lie down and simply enjoy. Consistent in that the results are consistent, every time without fail my mind is gently led in the right direction till it is sitting firmly and comfortably into a nicely aware and peaceful space.
One other thing is for sure - this Christmas there will be more iPods in the house, as my wife has grown attached to it as well and I'd love my girls to have more regular access to it too.