Betd suspension link upgrade.

I currently ride a 2004 spec enduro sx with a 5" fox vanilla rlc fork whilst having a fox vanilla shock at the back giving a travel of 4". I need to replace the shock bushes/bearings and having read about the betd products. I was thinking about going for the betd rear shock link at the same time, which gives an increase to 5-6" of travel (cost £100). I wondered if anyone has any experience of these products and any feedback, as I am struggling to find any reviews/tests on there products.
Cheers Pete Abs