I am using/learning both D4 and PP2012
If you decide to go for just regular M3 and some of his stuff for all that low price, then get him. But I’d get him only for Poser.
Of course, since you use both programs, you may want to invest in both M3 and the Genesis version of M3 (if not both right now, maybe you can buy one of them later and one of them now). That way, you can use M3 in Poser and the Genesis version in Daz Studio.
Personally, I think the M3 Iconic Shape for Genesis is the better deal. More expensive, but he can wear most of M3’s clothing. Plus, he’s weight mapped, bends way better and is the far superior figure. Plus, if you get the GenX plugin and the M3 add-on, you can transfer all of M3’s morphs to Genesis. Not a bad deal.