I bought it and played around a little. The main advantage I find is the face morphs, which allows for more styles than standard V3.

The drag is that you cant inject the standards V3 morphs, so you have to make up your mind which to use: V3 or V3 Generation 2005... Which did put me in an awkward situation: the expression morphs in V3 Gen 2005 is not very good.

However, I found a clever work-around that makes this package usable:

1. Load V3 Gen 2005 and shape a nice face

2. Export the head as a morph target (obj file)

3. Load a regular V3

4. Load the obj file as a morph target to the head and apply the face you created on V3 Gen 2005

5. Add all the standard V3 expressions and body morphs you need and dial away

Voila! The best of two worlds in one figure :-)