As for my recommendation, go for sedona. Holosync is a program that requires you to sit and listen. You will assimilate the soundtrack and it then will no longer work until you buy a higher level which could get very expensive. You can buy Hale Dowskin's Sedona Method or Larry Crane's Abundance Course (Release Technique); it's much cheaper than having to buy something every given period of time. Also, Sedona can have a profound effect in your own inner peace as you let go of unresolved emotional stuff.
When I do Holosync, I feel tension, anxiety, and some disconforts that come from my resistance to the Holosync stimulus and the unresolved material that comes out of my unconscious. Others even report physical disconforts like rashes, pains, colds, etc. I mean, Holosync is hard to follow; I bought the Sedona Method course mainly to deal with the disconforts that I felt during every Holosync session.
On Holosync, I recommend it only if you can afford to buy all the levels, so that you get the maximum benefit. Each level have their own gains, but I deem them too small to count for themselves. And it's expensive.
So my recommendation is Sedona Method or Release Technique; skip Holosync.
