Well I just got M3 .. am putting him through his paces. For those of us that like the option of thinner younger men M3 is great. For bigger burlier guys, the body morphs are excellent, but I haven't found a good face yet. But I'm a trying :) Much finer bone structure in the face, and for my money he looks a lot like V3's brother. Which I guess is okay if you think about it. As for body bending, posing and mapping? oh yeah .. the same light year leap as V3 was from V1/2. Plus the mesh is as 'plastic' to work with as V3, which means morphing him is a snap. The drawback? again the annoying injection system, and the weight of the fully loaded model is kind of annoying. If you use a male model in more than 1 out of 5 renders, get M3. You'll be happy. Plus with care towards posing (collars cut differently) he can wear V3M's clothing. Other V3 crossovers: textures, face settings for original morphs, bodysettings for original morphs, poses, tone setting MAT poses, clothing for V3M or with the V3M morph. Almost all footwear, and hair. Not too shabby for a new guy.